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 0x16858210d66d7415621aebccf355c82b2b73e9df4e32af16b666cdc64471135d. 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/dce82f7f-f406-47d8-92d9-de909eec34f6.json and https://artists.proofprofile.net/proofs/artist/dce82f7f-f406-47d8-92d9-de909eec34f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x0282414a9f18865522e4a5ad81f6976d1983acc18c5aea03f62a7031accc748e. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/US29S0401347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391206faa71c7a39d7ddb9b7bfba5cfb2f022861d470dab7b3dadd13f42c37f6. 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/US29S0401349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec718df67ed36a7646125d734b6e8b469b22f510a190e58883e4fc9d86872289. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/US29S0401352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35644bf09ab897b11e765c6fade393e5f7d013ebe40ca639a169a3c12281a15a. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/US29S0401353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4e937ee13475acd3415ce76fb9d377f01ec822751c789b8a4edffbd9c41560. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US29S0401356.
Vamanos A Bailar Techno Merengue Rocking Espanol
Celebracion: The Warner Bros. Recordings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c5f8827e8b09aaa2cbb336ba539be1622ad76fb45c34f7d99472eccc894544. 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/USWB10100701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d57b270a7c0d0b5edb6d1e06e069395540d44c1aa935dd843fe33dc65926b0a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USWB10100702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47626e32d319055c3faa368427c3631ef1131e53357bd41a26670b9caa052745. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/USWB10502428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf595ab3fb82f425610c66ebe381337146cbf559781f3e1075b29f9942f4697d1. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:57:37Z), 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/USWB10502429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b83dcbe8d6a8266d3a8834a6fb603a2463f3aa9daa2baff8225303c991c4fc. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:37:56Z), 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/USWB10502430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7133a67552b47a27ab3317b3d385d78b091db9f43b5a25846f6fc6e80aa1c4. 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/USWB10502436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4672c1a915146dc24521bb32202ab078dcd4c0c8f8585d150be2e00ac14898. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:24:14Z), 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/USWB10502440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ff37f383b6c744413c0d2aa44495055af7451ac3dd93d2f6f5c645c399e84f. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USWB10502448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd0864702b1dd7f6cc076ff66d8e2c5e003ffe80a9e81733ab50be273b0d572. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/USWB10502449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb17997ccd38326c6cb7348d73cb918010a7f02f603f58bf8416cf10fcab8782. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:38:07Z), 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/USGNV0701083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14173e8674147975fe289dd56fcc66128ef4351e34b816b6087fc5e5a39a2cd6. 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/USGNV0701088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ba290d1b06736f205db5d2b3b39eeaba3eca79ee987e6ccbbbdd6d8117de3d. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:55:17Z), 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/QZNFJ2118939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8f55e86a1547030f2fed19e1f24adca4579ab7e190d1a752b43f7f8eea63b1. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T17:28:50Z), 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/QZNFJ2118940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3f346a8be792d709d5c21960caa702da8df73211b895a7219ee6b9cc56b6a3. 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/QZNFJ2118942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb4e9e418bdbe0cd5813d9d2f057eb874490054a52dd2313874fee00e9cf451. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:58:40Z), 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/QZNFJ2118949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa755fcf43cf4e173395188710d4421ff0afe95f23648e6fc6894c21989dcc459. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZNWQ2035025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95738849246bd14be0a0f6ce186b309307d850eb47225d1a35f73499fb2a9f43. 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/USWB10107780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c2e2fc0714069db645912c8caf589e9990b9c087d3970e3e5f9d51da573643. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USDNB9954507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db41280db394098a4ee8b364577e43d790301b94f6b3dd125ae83bae165c547. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USDNB9954511.
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