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 0x4b8f94d37f80d8ba05a1e0a086dcab218d55a6ac49035f76b23ff5261b8c2f19. 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/7d9ba889-ed4c-4ecd-8c0b-e27e0ec9ec97.json and https://artists.proofprofile.net/proofs/artist/7d9ba889-ed4c-4ecd-8c0b-e27e0ec9ec97.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
My Mother Told Me (Techno Vikings Anthem)
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 0x99b52d9d80423a8a6612fbe194355be596dcfc2b8ab247c40dcd2bebda8a5783. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/CH7812409032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a6e03b01eb682541733f47fec243d0a83652a9f81ffb834a3c39fe35c1055d. 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/CH7812423767.
Think About U (Patrick Junior Afrohouse Edit)
Think About U - Patrick Junior Afrohouse Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b717b27bc468e3ab8822f1ea290703fc1ceb3e49dcd5a2a1df6f91bbeac548. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CH7812534934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f24e4eb4c74f46c1107e4deb94f9a4d7b9b8b0098a3d0ebfc2bc4f7a3a92b29. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:52:02Z), 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/CH7812548841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8a88f6f5cd34ee466eb38ada822eafe57931ec401b44e5302626115453b8c7. 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/CH7812527362.
W Moim Ogródecku (feat. Diiya) (wszystkie zwrotki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b941e209bec6e3e78f72465a70ebb2784fa9f90ff236454b567718aaf551887. 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/PLB382500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cecbbecc083a8fec0d049a089716afc387786f7d56cafb51dc05a846e1a1c1. 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/PLB382500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7d28714f659fce816335e2de1178c1584de1926851a2cc5a5a790804a76cea. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CH7812421630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ded9661928d24e5533fa2d9fbb97c6ca73610874de374ee182b6cb5e351a6dd. 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/CH7812410621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c935e3551f28accd664e803b1ab88522540b2598f7870f8e9fdd39eaf1798ba. 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/QM6N22461932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde843358355d54e86ee004c15e9004e3d0594f607f78567bc01416c10504b616. 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/CH7812406815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2845fe866b11c2c3764ac6db8947849dea4bd646a3db031bcb9a0e52ce86352a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CH7812404116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2d64a35f51635dd949c4e3cb90c8d5cd3a2388b139a20451b07d440eb2acbc. 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/CH7812371193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c537eba5b99c840fc4a9695a17261408f7b0753b71544d80ca491550432eb23. 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/CH7812361411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd989a274d34e3ff966b1993ec72f83deb468b4b78f52f8e86ce89bb6904b576f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CH7812359683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcaa26188c820f281b90a4e4fa915accb00c528175af83f7f1667c84928abf5. 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/CH7812353652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a76b0d91b2cbb2e8cbd742cbbadb8bae1476dddfde6a1d001abefdefcd33b3. 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/NLT2H2201005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610cbb760797ec6722c68f0236dfa1447e3555414ec7fe4625bbf2f76033b2ae. 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/NLT2H2201006.
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