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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 0xe3afeef6621b95a7342bdaee1ceeac7cf434064986161e6f30fb14796d4da6c1. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a816b05-b00f-4d5a-87f5-97cfde6378ba.json and https://artists.proofprofile.net/proofs/artist/0a816b05-b00f-4d5a-87f5-97cfde6378ba.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 0x8b0d2846f0cceb18fa82bdeeaf53e9eb2f513d49653e1128072caa116e0139e5. 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/US83Z1769917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4e7fc2d104735420e42d7ef97b5b27f51acb3ee3cc631c99965eae165620e7. 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/US83Z1769920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e5d49d0b5fd86b2173ce700361d7d0fd4e7363ca01d086053d7756342f3b70. 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/QZTRX2355948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee94f3234c65cf8476133fea861d78abb75996993001367de4ba9ce79fc2fd5. 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/US83Z2457253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef1bb74e815f27caadefba3c07277a831b4aa27a69d82a95ac3d3285b1c8ec2. 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/US83Z2457254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4cd06e91f1dbccf330194cdadf9990f0e7af28b4ec4a76ded634a1da13c5b8. 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/QZTRX2437600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a9a0afa737a4c1a17f1894f2c6c1baedb6a5305414ffe4703bda00f2847583. 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/QZTRX2437603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f85d532f86fd298e206f445ad2038355592fcdfdb241d911baa6db41db5c25. 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/US83Z2516271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc978f2fa5afe60810af01e98c0747c9dfd01a8b0d07ea4569145faa443f4ae. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:27:42Z), 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/US83Z2526607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb768bace00b32dce9d88be2ccc26c88c426d4406ddc1214394915a6e5ab3b36d. 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/US83Z1785597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d3884c34ca4c2b6278215fd8710b59140ea4557cdb7b6463fc60182e2f5e20. 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/US83Z1935159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227567308a9ad31e05f818ebcbde49fbab0e3e7889cb34ea462ea32d8231d856. 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/US83Z1931250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66b4d14dd491320545df759a9420f840a22e45f137b57fd6bc93788d068441f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US83Z1785368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8f1755ed70cd03e754411dfaccb34f2333a48cfbec7d6fa595d81e2f7a5687. 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/FR85U1900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf52f3bda6c9ae7b292dfe3174ce4342f6980784aa0974b1aaa5fe5e6c1ccc0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FR85U2000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf52f3bda6c9ae7b292dfe3174ce4342f6980784aa0974b1aaa5fe5e6c1ccc0. 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/FR85U2000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440123e0e9fc54cc6059287cac6fb7d83aa1ed0d046c9f02d91695488b492c1a. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/US83Z1931249.
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 0xf244654d53b75314fef53cba9a8033554da0f62a3da4bcb0bc48a0835a26ddda. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/US83Z1805308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018405967e1f2d5315f7999794547906990afc68f0fb5dda335168bb182377c2. 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/US83Z1775475.
Buddha Bar Summer of Chill, 2nd Session (by Ravin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff341d4789f35792215eaa514b89a7bac2e29be91ad3c31e842d3c2677a3bd9. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/FR85U2000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a5e0cccb3ece8def513ef27722c823652d5d1b9bce49c9d7b654ef7f511015. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/US83Z1923829.