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 0x442c74b4b2a7eb95c6181509269ced0170917f7c6198430a010a9f977f22e383. 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/cfcc1d79-8e3b-4149-b607-152951929f5a.json and https://artists.proofprofile.net/proofs/artist/cfcc1d79-8e3b-4149-b607-152951929f5a.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 0xe74731fa97f9fffeb1691dd4e09bd43abb428d4e1fcf3d45743478b681a1da47. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/QZ2L61600189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7851ead70c2e9e921ed2c49cdf466cb3c268ece16ae13a7c0531aa8d7633431. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZ2L61600191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82dff297618190273f242a06196072a1e889d69374fe1fd736a2fb692b94e3bc. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:21:48Z), 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/QZ2L61600192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d509f07b9f16c3a62197504cc67cb358517a443285cb85474cf578afc6a8a9f. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:09:42Z), 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/QZ2L61600193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f3989a91b2a95e390179a082fe7db4c507b5604a0e120b24ec119d3344ab27. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZ2L61600070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c472ade43e37523521b5a3d40931947b6f1528a55ed0540e88b5d5f0513d8d. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:11:27Z), 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/QZ2L61600069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0be4676e96df79ac03f82002cbe014b31bad4dfc389946fa11169fc9d7b5846. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:04:08Z), 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/QZ2L61700037.
Audrey (Spending All My time With You) - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4cd12fe053a39d2654c4b4a01eb8bcef297587cdeed133c2b326490723f515. 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/QZ2L61700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b554f5d1b0986609a0dc877cfe6c5846016df8075de4b35526805188ec8ebc. 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/QZ2L61700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800717bb5f84d2d0dace108ca37f2d0800fd2cd9f282246aa988b7503c63925e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:05:44Z), 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/QZ2L61700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78c33164d532ff48d490a37b2eed6efe0738e29bb8cc835f8b2a74e93c0bb01. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T21:00:51Z), 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/QZ2L61700025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88fef260e78ee77147cc00aeffacebd3f92beee089bc731d9092bbaac021ac3. 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/QZ2L61700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec987e456c90767a10e7bb86c158fe13eaac4e0798da2ae37425f4c68fa3562. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:32:37Z), 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/QZ2L61700028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936a720d35e93ba685ec44bdfc69710d0c2df4f69435554f1086351a87f43a9a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:13:08Z), 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/QZ2L61700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66051690014238e17cdb7b48e235b1b9287e5e2ef35cd62bf38cae332d636aa. 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/QZ2L61700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad24aa608f916a731cd4c3c1d504cc8d88e6b0307015c35a69b76d07c88d2694. 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/QZ2L61700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8031be6314c88b91e67c49aea520a2597eb8386898454214d95ae790731dea73. Chain 2 (Bitcoin): anchored in block 957665 (2026-07-12T06:13:49Z), 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/QZ2L62400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9668a448a923dd7f518c618f752df5434d6d96942e877af00facc7d47b6e87a. 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/QZ2L62400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068e60fdc79cea44a0cd1895d10d01bf049b14580cccffaf90746aaf1a0d2080. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/QZ2L62000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60fea6c09ac6d91f5db3731edb0be44306a441e641c0fcf97b10f86a4aa83b55. 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/QZ2L62400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3e52d8de637ed222383163b3b603f212e5c2d62b1af589bd9aa27e1ee6451b. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:30:17Z), 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/QZ2L62400005.
Big Crown Records presents Crown Jewels Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3f4d35fdf9517621b3b4a3a29f97bad1bcec36e5cd83015bedc5f6e5f80db4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZ2L61700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1ab0645f1cf41a3be14f4dc23c3c33b9ee931a41d0c8b380cffb572fa889ed. 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/QZ2L61600040.
Big Crown Records presents Crown Jewels Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1ab0645f1cf41a3be14f4dc23c3c33b9ee931a41d0c8b380cffb572fa889ed. 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/QZ2L61600040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c6fc2bf3977e9481e64cd17ce73b36db43f76626459b00bccb071401e4b969. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZ2L61600188.
Big Crown Records presents Crown Jewels Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0728377c5509eb7f22c2806c66f57ba10b070586514ba0e2b084013a2f0f12. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:36:24Z), 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/QZ2L62000097.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046eeebc8ebb9909fdf1e5260f2c60c08c3be749bceecb5347c616924f98f801. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QZ2L61900223.