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 0xb2eadd07062ca59d0e81cdc7858be9bfca6f2d5a4e0b8263d72723b560649c7b. 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/50c37432-e315-426b-8403-5f58c94b46de.json and https://artists.proofprofile.net/proofs/artist/50c37432-e315-426b-8403-5f58c94b46de.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 0xee365f2bb7ee79ef363461916ca95fa828910fd6bc8df0b1b54f248f69edc534. 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/QZB4J1836541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9697b3b21214208cbd168e85de8e5c4f3fe91abef4d7b128778ca66ace85d5. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZB4J1855493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bef9134a34e04f000c9e8aeac821a7828df82dbc729aff2d18fe849946c20f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZES81916622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1bc695c19f205c0aaeabbdb772d0b6966452c4f56e54c4427ab3d684649a92. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZHN41937187.
She's Been Waiting for Me to Get in Bed This Whole Time I've Been Making This Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511f47532a6655cfd25186d3c564837a54f37b114958942043f0aa21c7dc834f. 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/QZNWQ2070849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c10c8752a8fab93e9b00036cc7ebea0c610ea9618630d5ac1592118e04f381. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZNWQ2070850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f32c367d4067b9560a3a5e8f5b56f50572adfad8bb78a1539d87ad1f6e761db. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T11:03:24Z), 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/QZNWQ2070851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ce6f14e6f2708323211b6ca06ddbb7abb6b84f654ff51443c45f141d199eb1. 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/QZNWQ2070853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa113e5a29a53ee03d4df9d65f7f1478b3acbce5a2b231e00c318ef51be63e77b. 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/QZHNB2112889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6c220b91dec5c7809853db7e0dcd91d68958263359b0613f6dbf7106877948. 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/QZFZ72267099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6628bd76f41494e99af19668de61fdf944e22498bf324ec51e42753bccd03db6. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:29:01Z), 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/QZWDE2312721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19615afbe1e7eaba5ed4666ed26f0d6090d61c091039fa2a4f8eed4c3a7da7cd. 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/QZWV32364056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626df628a31e690f4a3ed86ab602c1ca35c4e2e1ac9185b6991e0265561c4d88. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZWV32364093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f85998901f859ae4f0b826c63ce086b1018919c45470e9a2075955f0ae43c8e. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/QZZ8A2397776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0571be439ad139319d966c92d74bd8fa3815bc93d139535835284464fdddec3. 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/QZNWX2439320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9cd6a372f2029b04ca8c1a444ea5304b5346288123f3d673b17e32f3b282aa. 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/QZTAT2392198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab03fdb7b47841f9c92a3cd145356e40d1dcb4d1cd8707add6ef617a017dbae. 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/QZMHK2247626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a90b205bc1ccc27d4091ec51a9f950903c1924bc5b59c2fee677a898222e2c. 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/QZNMW2294684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a90b205bc1ccc27d4091ec51a9f950903c1924bc5b59c2fee677a898222e2c. 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/QZNMW2294684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467443d0bf31c7e1268c409185265023f9a272f094ced9346e83664d6e05d955. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZES92399475.