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 0x194b89c09143d8b6b3ff8f8ab269753c957d101b21589acf080d6c3530984a91. 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/349a19ae-dc1f-4efa-94b7-605296dedfa1.json and https://artists.proofprofile.net/proofs/artist/349a19ae-dc1f-4efa-94b7-605296dedfa1.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 0x885d47e81c4477d487c10a56b48235e904dcfa51bba62d0cfa4dde5658ecaa27. 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/GBSMU4786935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32941f3e6fb63f3db36f67c86e761522c278377ff6e64a7c90c6da5cc1ea365. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/GBSMU4786939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9c133feead56ae7cdb9ac0d5abe399459771ea67db08808784898a9c470b1c. 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/GBSMU6062247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f20d058be8ca9bc5749254c2ce48275039a6cbcb83c8d6a54ed2b0f97f56f0. 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/GBSMU6062249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230aefe42d7921b82ce5e03ed463c29a1711ea8faa9d32c4938cd66df4dd1495. 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/GBSMU6062250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbcb48bf73042b5fee4e25ba059efdf6d6e7c9df4011a82f44a4ba786f02868. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GBSMU6062253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9d2ec46db8ab5217f8ebf4cbeae41b5ca4096e82c94e3eb0bad351a35cabfb. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:10:53Z), 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/GBSMU6062254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d276f3e811eb26f1195bec036073ff670be3694a7e0e30f9cd8613354a1575f. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/GBSMU6062258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c1baf8f8dda4c03c708b56140dca1203bcba1b61028f3be3f35fca137488d1. 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/GBSMU6603062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f3fd66ce1ee2908a84453b3f755469926da43d9fa7277d8f45f0f9b8164ff5. 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/GBSMU6603063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b1396df06be68e46de4418c9c84958f7c76b21e1191292e57183f399c4b032. 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/GBSMU6603066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e9106f7efe852a596fa478d3c12257eafd7ec5dc18b9425187884db3ead679. 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/GBSMU6603067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03de843d4a033ecdab741909e409d0c6318d0dd9276d5c001b8ebfc4264bff8c. 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/GBSMU6603107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f3a7d8cdfe533d1dae84c0827062c3293db65e057fbef33c7865fe89e30a4b. 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/GBSMU6603108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327f80e4ec3275220c5f2ab8532bf81321369e318100443c0ece7bf24720b297. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:48:14Z), 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/GBSMU6603109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1f2bced50333f040efd2a207b8f41af0c04a96bfcbfd96cae1b087b002b414. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GX8LE2329335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8dcf4f29c3c01ac4216cc8c995efac1b6be3968b605bb0a1f435e400d94635e. 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/GX8LD2513768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586319aff3230784bd9acae587e7bff55f53914d157349f3d0e5b28cea9fe8db. 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/GX8LD2592956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8331e09a22d11705329ff0a40481679a8202523146c1ccce712668bc06b6351a. 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/GX8LD2563212.