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 0xa2fdded452c55d4f60310913fc38367fd18c3bdb58824cdcd65cc34e29ea7f40. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad397093-9f18-4b8e-857d-254ad33bae1b.json and https://artists.proofprofile.net/proofs/artist/ad397093-9f18-4b8e-857d-254ad33bae1b.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 0xb5e68e9f711448d20bb60ae1c917f1442eca1f14bdf51327e4a916058e84a603. 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/CH6542040833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e8c204f68e7ff00a78ac0a9e54d33aa76850a9726a9ecde6999e5a615a261b. 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/CH6542040828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337a10fac74c9752cc75c04e4490dd180f335e6db5063ad1bc82593941a9db70. 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/FRS182063784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713e12ad43c0902eb581ed5256c7ac6ea0e9fa7c0354d66b1a91d70feed230fd. 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/FRS182063785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490caee8b03ed99b1409a1ad94785d79de89f2187ffb5827da674aee84d5256d. 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/FRS182063789.
Roll Call - Panda Dub & Tetra Hydro K Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6816220dc0ae0c1d05bb08ce452c7d1114b380acfdadcf836359047ea1ea8d95. 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/FRS182063791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d04efbff3c94194d3b0de80f2dd50f8d9d1e3ed46a78af2cc91093f2a0fffe9. 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/DGA072343746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6476adcbffbc365453acde2f63e49e56c897a01e5f77804aa02ab1907ac034c. 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/DGA072343749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12bf8eeb384500babda6f0e07aa849c2fcdde4ea3a310dd9764a615f0719811. 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/DGA072343750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50463fa31d6a404782b7f8ab4fabf5e7606da59562b832bdbedb1524edc2dc4. 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/DGA072343751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c73daf48dba6ea9f06111d082035b90484a3d7aa35aad01972f4476450b803. 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/DGA062032044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023452fe8c5545a96ffe08360dc4d5bb6a329b78f83a16e29ab82f8b245f9602. 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/DGA062032045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c7774da98fc84c3ff27fd0c8078818b8edd963267e14dee12aa0eade9b1299. 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/DGA062032049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb2dbd0c9c6fdca9a2b895e8bb6e3298f5fcabd4a581c12a7580ffd31f53dd1. 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/DGA062032050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5514eb5831a7a6aa323bcd10f72117b647216e88db52925dff748e85d13d58de. 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/DGA062032051.
Dabu Daj - Uncle Fester on Acid Yabbadabbadub Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccb825f1b2b0a1c2ae3a8b03412f5595216addac97a4837e470f89abd9b6c52. 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/QZK6K2039023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d127dab2380a7ab3e7e7107f604fbfac1297e710045858aeb31bcb853604b9. 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/QZK6K2039024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10e6219579d06aef65c4f6a518026ad498e4079bf1d9470cc076176a3e2b600. 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/QZK6K2039027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d352c3d45f288e24418bd1fbb381b8b766a0f8659e6f49a15ee46b0fa26128a. 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/QZK6K2039030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0167dfc10fbbcfd9bc0e84ac815300753937aeb4ee11527b43b6407bde0d9ed2. 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/FRX201902937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fbfa456349c0532ea1268ac7133b17e376ed5855720ac93369542a7f1a81d9. 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/FRX201902938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f1f148b43f2f326ed43e6bf7dd0aa47ec01f4be1dedac74b27bcd2bb9fab43. 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/FRX201902939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf502961839d411df5b79a9924b1272063348ecb3b91802b944ca03eba4f0a725. 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/FRX201902940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978bb9ef2a2cf0cb151f281cb271f0db197465264832871fdf4ac9e7e5953654. 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/FRX201902943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1c688cea4f7f986a7eaa019c4709ccf76968dc46115deadd77ca4ae78efa44. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRX201902944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0e18bf694a5bd928dd25c913173513e026087ba7684a710f7a3b87d7aaec08. 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/FRX201902947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac1a820dc1aec1f177e40b99da7238713bdbfa5da304563eac0ad9db65b93e1. 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/FR2X41988429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe866f206319d89cee75d41e53e67163dd53d1959293de67bec6b2ae1dcb035. 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/QZS632322137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12bf8eeb384500babda6f0e07aa849c2fcdde4ea3a310dd9764a615f0719811. 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/DGA072343750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eaaa4d26c6df8073031382800dfd4868380455dd5f3f11824555cc8f39eb8e7. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QMFMF2019484.