1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf68ed56e83b2c9134c040add6f4e3bf1d43ec25ac0c39664b19c639e14312a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3c32e9e-cd19-4569-9bab-7dbee8ab793e.json and https://artists.proofprofile.net/proofs/artist/b3c32e9e-cd19-4569-9bab-7dbee8ab793e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Keep Forgettin' (Every Time You're Near)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f577701a9aa95eebebf30d89bb300fe7481834295b579402017c2a82cced5b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB10100181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7f85bd1b467dfadde3c39f784cd64dc1b43fee7d7fa6394f67637fd4a59dcf. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB10104668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1136fc55322c6f40d5804494a7c7aa9e7a549518a90b51ada75273472d7d24db. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB10100185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb779b0f33558b639359fe4f1f63fe16e281629416141f3724c74641628436c7f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB10104670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e39071285fe2cd02a8db962337067be5b9873163bbbd1782403d97708f29802. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRE19901650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb36874ba9e8d2025bfe48c88c1d56f9ab7a9fc2194b0650d294dd85c3875bf. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:15:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRE19901651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c228dd80dd41852747a31cb9843c3e360c7765037d884f1feeceead084a209. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRE19901654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7d1d32921b078fa3f760e05fc78f53bf85c6b47f148a22c59e519fc75aee2b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRE19901655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93632e54099d8e041ca2204f6cd1dd2a7c14c1ddcd36f48508b97e82a64985e. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRE19901656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2bb131d5acb8885c20139a54ee6ff93607d055a6ccc6756735ca156018a43c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRE19901657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de87b41d7002cfdcf80d75139c75853c782ebd0a2c73096c7f26089b09eb7b1. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:59:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRE19901658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59971ba1221143d91ac9f6f61cdcf6522abe6327ead118a3483285b4a4f4557a. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRE19901659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130cd22b61e135221683fb2b7812b31e69ce5a9ac4b4ae09056ca6a2b00354b6. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRE10101443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc203d59b89ee885ee6b89e0c0e3c9d66c67b241cb49dc673b897724c24073d. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRE10101444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfda836007492121493d015d5a1412829f0cf7e558dddb2dfdcffaacc323e1d1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRE10101446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa5e98b4f3088935d5ba6d542deb58e89dbda814f0c8955f1022bbd25e5f90f. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRE10100182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f0ea6fb1cb3d0de3cbbeccebb475c2ed74622b74816c8cb8abfd9867e583b7. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRE10100186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1bf58c5530cedadeb25e78b4bcf8d1f79fe0464f9ef305780c07efc314371c6. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRE10101449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe962384372f134702e8869701c4f0ff178f3aa44488d523da8ae50f63ce5ec02. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABO1300570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401ad7fb8f3d0c53fe0060f6de914a544a4449b1d40a91c5f9b8b7d71a7a330a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABO1300580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b06fcc19d01d66ed19910a50b6d55767cab8865c8238270de9c4da95231597. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:28:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABO1300584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22b9d504497272ed31f715dd3d4fbba295c31425c583b0f9fb67e6430be813a. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABO1300585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fa0ab11734f5ab17b6fcc5fa2b0ded16c9bc17fff61611b1fcdb60b4f3a8e4. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABO1300660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119b7f1dc578401ae56d948f7b8acbec4cba7fea21beccb84d5ac07587cc0b83. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMCN0110141.
20th Century Masters - The Christmas Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0e5ea3214041dfff05fe7c7210a9941ed422833c3355368973b186199a60f5. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFWU0300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3544391946742c5671334e05bc9aa4a60fa52289eb5835d45a20e53eecccfce9. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFWU0300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a0d5d3b5a3fc6a747540285321a2bfa26a2dd2c4749d4decf316170fc0d3a7. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFWU0300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0516f09ea040e16a265fea68b9ae1b9fa8e23bb649f8b16c97dc8c096242600b. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFWU0300004.
I Believe (When I Fall In Love It Will Be Forever)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d655947c280195ba1450f3f85b5c271dc34419cb1db6751f0bb640e8bde3cb. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFWU0300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0516f09ea040e16a265fea68b9ae1b9fa8e23bb649f8b16c97dc8c096242600b. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFWU0300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf047afcee6b768e489527614c691a9c51a84b1b5989d3de21ccf28e06aabe97c. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFWU0300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd29054f8cf87cb225c7036e27d65fbb879a2db6de1bc3d117fc351c0133a02e. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFWU0300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3544391946742c5671334e05bc9aa4a60fa52289eb5835d45a20e53eecccfce9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFWU0300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a0d5d3b5a3fc6a747540285321a2bfa26a2dd2c4749d4decf316170fc0d3a7. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFWU0300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5551b1475b9290ae2be75559bb1d6fe4047e20873797a866361c38510cb431b7. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBFWU0400215.
Through The Many Winters (International Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139ba83de53e24e301ca1a947b054f87ee0f3e5fa1c2adecb4ed85ba4f46697c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRE10500695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4dc0e98115cf761d6e9622219971403f86eaedeff98e87bb786042183604da. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USRE10500697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eeed91bc7be16f97eb4731257ed8c6771ac37fac9a9092123cfe05d1a067271. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T03:03:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB10502670.
(Your Love Keeps Lifting Me) Higher And Higher
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9742dbb692d9d7d6b30fd2121a243f2e85aae328e64872dadcf534d96b217d3. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:47:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM70800567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629b98430a36949779cea845de8c4548f817c1d59acfa6586f259fc862e0c1bd. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM70800563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844df1c52bd7c191f63937818b4dea598eba632a898c4ccba4fb75810085b29e. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM70800559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4937b008ca00b32e0eb29456a313df0f1ca26d1539a6f9944504b7e526d6e9b. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:34:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM70800556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd5add396e32de6458e19b4bf58fe9e4eec40c9d55a8a9a27ae1ccb808a988d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM70800554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe6d36c697287936aecc169b06747fa07e6aea0c4b1fb728b751bc7c63bc204. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM70800560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a3a572247f9c5da90ab920b46b57dc00e575960a3e097e535a2d0d338940e2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM70800542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65f2cae4c6849f56ba29c78c68ed798cb21480a52708af2fb9869db61e992f0. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM70800561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab251dc94187987d80199966ddd5a273a37f681a969da85f37eda4961e76ed84. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABN1353392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cff39ba42a275ef6ad304b79e599e9918785443dc5598149ea73dc3556adf3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABN1353396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c71ede62c9ee27667d9482ec42c2387ce170448e1223bf886f0bac8708ce22. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16946c88193590afc4f7074289fc0a51eb2ea5de82c6eb6e5081267e0c5e12ac. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60b4a2413be2379e603132bd9109884ebf20b2114c7da504044be6ac0692c79. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:39:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988116839c75f1329ecf34e0cf120f459a769747632d77bc2877cf4b34a7f81f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec728f0c5cefd8fc0e4e8873f22012d5ed65f7dff9ae762568f01b4bf677507. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2533035a30329ec18635dc9660b8c55a037b294428e0a53a007b0219da98f41f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5248ee5c35028707e6d7eea02d011ecccd7e3b7c0423bad6aadbdde3f252eb. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b2847744d0f513988dfa22d131b28c914775304a809b910375dfa1cf96fbbc. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T01:57:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc11824481a8960fe42342d1af2f4b867eb4e3dff4e36c26461ca8e94fafd874. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba739176450e35df106d0d1191bd82a0a42f780fe3f2fa55585b21ad18de8f0. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ae4ced197bf5877f32aebf51168fbf85aaf67b2a35f1a22ba2ef08982a14f2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a1304efa93a9dd41c4242a7284b76bde1e4d30267f0cd5cf19698b474ca381. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:55:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0637d4a3f677db584928f12702f3c304c84fa291f79229b2fee964d2b2a9b2d9. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:29:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8fc9c064e7cd7c61d129fdc7a0a910800e3133e39e6e39712e9f5513c7d72b. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ae7e80700a2c61498ca28573f13b9aa12b9a8a26562e34e9116e541d067e1f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012924d7c8384fe3a75229d38b770705436fa86cb47062b934963576ecbd6d45. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ef17e310f25467cbc3b3339383b62f3324019bd72511f57f268dcc731ca9a6. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3129610abed0c1e4b67340e121ee059f28affdfbc0dd0bcc0f3226954f008c9d. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe287f4b28764d27a69b586857e3507bd132d2c1b4fddcedfc6ee66b76f4b7b10. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b3a08ba34ed8c1c8ae1fb6f04b7137748da246fc0fe9ea9416cdd157e8a391. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1a6b334c682a2ccecbd541f2433a41e3bdc158ad0c9272e03d3b096f35f598. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f43ac2e28005f20388e9983ba15c1f27a349af6f581d21969acd3eb335edcb. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1701963.
Winter Wonderland (feat. Jake Shimabukuro)
Season of Peace - The Christmas Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542f0fbe0032067127926e3a9ef9812640e846b115ba9d053b6a3212881fdf66. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1801233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c38415023db709e93b63cdcc156bb8223dfa0055c57674fe24d1cd4c676793f. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRSZ1801247.
Season of Peace: The Christmas Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322cc75ee797f2635accbd1c4c9cf91090490b60f178512b99d52cca91fa351b. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:50:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2003013.
Takin' It To The Streets (feat. Drea Rhenee) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7f4793c3a0b17c97666a1c1b876a11eab69254680272e1ba677f0871e8122a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ7QJ2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945e1b614edb575bb65cc032151abc5dcf53bda799d5d190b12fb9682fb5a78c. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:58:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2203981.
Mavis Staples I'll Take You There: An All-Star Concert Celebration (Deluxe / Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ba325ebff7b00355129261a9bdaf5b6452ef2697ef655cd636933617832dfd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ7KM1700020.
Ever Changing Times (feat. Michael McDonald)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcbd48ea4aa4cf33b560b52159113f747b1d1e6fe41386f62baf3efb1a077d1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAR19100121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc461e99d242e2ab48503fd396abf2ce9005e2d048ee93aa7dd48207721caed85. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6XS1574818.
I Keep Forgettin (Every Time You're Near)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b81ac8859e077ab92982feab63184428bbda2af39dd8a2a12a621dbfa83bfe. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB19903128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b81ac8859e077ab92982feab63184428bbda2af39dd8a2a12a621dbfa83bfe. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB19903128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c64576cf444cee136e49da85bb6a892c54409ef5b6e4d3ad3a6c299b05a2f13. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEE10500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b81ac8859e077ab92982feab63184428bbda2af39dd8a2a12a621dbfa83bfe. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:11:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB19903128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b81ac8859e077ab92982feab63184428bbda2af39dd8a2a12a621dbfa83bfe. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB19903128.
It’s the Falling in Love (feat. Michael McDonald)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c64576cf444cee136e49da85bb6a892c54409ef5b6e4d3ad3a6c299b05a2f13. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEE10500007.
I Keep Forgettin (Every Time You’re Near)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b81ac8859e077ab92982feab63184428bbda2af39dd8a2a12a621dbfa83bfe. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWB19903128.
Just The Two Of Us: The Duets Collection (Vol. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397dad6c5df0ce647086b2049f040624b974ea0a88deeedeed70ef28e17deb16. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US86A2100245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1d90a13e404d1f95d65acdbc8d0d4931f4a84434e5253dad117ded9f7d39ef. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEVVF1803603.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch