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 0x566b064d78209aafb048e870de8f154c2ff52033d5bb73909506358cb878eca8. 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/c28096a5-b0f4-41a1-a5ae-4074e3881507.json and https://artists.proofprofile.net/proofs/artist/c28096a5-b0f4-41a1-a5ae-4074e3881507.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jesus Christ Superstar (20th Anniversary London Cast Recording (1992))
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 0xfb39af087ab1285d4123a235b1ae908faa899a395773d55bec7a1023c7c53357. 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/USBMG0600251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296f493ea8a455a5a3c5fa7d22ef9b196867cdf618001b39fd488e2b3c38ac78. 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/US3270403165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eda2e6b7e81a0c834a5dc8baff358363fb3d9548f8a97fc1bf49b32023c8ddc. 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/US3270403178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe1fef8dfad17a8d1b33dfd44cdb1e12c6794d08bb099eab5d16f1f3546908c. 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/US3270402806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa918d0970857609a1cde5e634946740fc9bbb03b843eeb92134977aac30c3e4d. 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/US3270402807.
The Ultimate Playlist - Gaither Homecoming
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78ad856e5d24a7770643894485f9e171ae37ef1f39fc923b14954997eea6585. 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/US3271202523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459931042525d86053e8fb49da28ad8ff3e4d78e439257ae64402350395b534d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US3270404134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e034d1a38f83ecc1dfd147dde0da98537361253f7c062c51f845d2fa99be4cf. 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/US3270404760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140e342c8d933dea50539d8b384d86cdb17f2b24e946939b95957c9bf60d7b41. 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/US3270404757.
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 0x3f8864622918686e786e634652a5774c46961337045a7669079752c5f1c914f2. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US3270403823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc146bdbd0b3f0a36c12f306d3a91e832ea3ca7d19a91bd1df63da0b31469248a. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/DEH849701626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6f1200e5ae34e17bc5c0ca085644553fe90f9d719049399cc1b9461298be84. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USBMG0600227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a52aae2dd710e6fe7172fc9fc0cba67ee36b3d7b0378b2dcb86a64c7ae7d2e1. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/US3270403163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bcf302bf845a5ed7b5186849098e689bf0444b111397f5f3cd875682b095afc. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/US3270403166.
Bill & Gloria Gaither And Their Homecoming Friends
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c20fef2d493dc9eccaf59c21ebe12ba61bdd3652fa3fadc9438f69f339647a1. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/US3270403110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e095a0617461fc6338c1ba96d088b2e28f11ad3190bddf08c807952d771e99. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/US3271100011.