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 0x6f4cb97b9be100daa567c6d50bdf64b014fb33b58d3b47215491e7ba1ecc5369. 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/5cca9787-a910-4741-9d4f-816bce8447fd.json and https://artists.proofprofile.net/proofs/artist/5cca9787-a910-4741-9d4f-816bce8447fd.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 0x6cdf85026c05aaa8952402e44f26f6fe8edb7d9801845e4d6870ee832f0ac938. 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/CA5KR2138673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2ed01b772f89e20a3f69df94b928d3ebfb4bfda3a2ac21ce90be8c72419059. 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/CA5KR2422448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e76ef64eb810e8fbffffce2dc201d9b245bd266c49bf110eaaf492fe75ff64. 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/CA5KR2443414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9059a03a155876396e4bd4a36305a318a0636e7ea9493246116bcad911c146ca. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/CA5KR2467959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7825beeff9d36bb3cc8438737b4cff747639621197136c16dbfd34e46728f4cc. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/CA5KR2467960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb288f54d844bfb44b1755363ffdd36dceffea06c9e44cc1aaee3798fabb156aa. 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/CA5KR2467962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b7e7d40d03f1edbc32bad616b9fb92f4dcea1e063b272b692ef87121de63b3. 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/CA5KR2511706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a0c6577f34148f689a3983677a98729ef9096c9481455fb8b61b96cc509029. 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/CACWV2592880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c8b6e57a1edc25e93c655a8dd4698784d707712444f59956843f25f4abf19d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CBEYJ2515691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600028dfc0b93bf9e54f403e32b17b13d8dba5d8654b0a8188eac359179acf91. 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/CA5KR2326583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6a0f2fd6394a70449d302b0413826bc148110f949687e5d7caa3029f445c6a. 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/QM24S2011211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f871330a87a3745ecc81273a99d391b8f7bc48ccd99972a158ebbd2bdc8e093. 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/CA5KR2437463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09d3603351916ed034959e5f42b23567f2076a1d9f56721ba392626ab5bbc31. 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/GBWUL2100566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e4abee1d1ceaccd358fd2421ebd61b9a89e59da6a0b88f713a4ae6b2f6d7bb. 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/QZMHP2043164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea895bf813e72599f8ab886b40070e039ef84596b2de16208a25123c14d4b7c. 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/QZHCR2000087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31abef7b0a7570278a943ec65887dac20b52004a322c54bb82afec519101d01. 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/GBUM92000027.
Ball Licker - Chassi & Nosphere & Maahir Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac86d3d9fd49a34a3216d6ab191c14904e511a2998451ae12b0cf338ebbb2f1. 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/CA5KR2088949.
Bassweight Records: Syndicate, Vol. 4 (Deluxe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8069f6543154a8a81149fa8bdd8ae04cd962879d3c04998734ef349db549ba. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/USLZJ2032727.
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 0x65e35c8f329aed8a0857b6111d3bc09a79361c271dd2b36fc23a1410a0521e68. 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/CA5KR2326584.
Unidentified Flying Objects (Nosphere Remix)
Unidentified Flying Objects (The Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccca35b2ec36aa0bb19c60221634cb5227984cf335447c7a28602f05f2b801d6. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QM24S2202435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259a03249238f2ee641fac78bcc55c11311b18a8dfdaec0859c525413cefa2af. 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/CA5KR2126553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899d86fe823164a71b180e8b7b3d921de66a1bba9d54435707e4555ac8dccc4f. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USLZJ2059912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9eb3033f7cd5a82315957d6e1cbff0624c42c7824026e90859a6cdbe328ca14. 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/FRX872424507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8704f1ed261318d0d0d4b26b046bd4c028647c2a8ee738e746fda52ac03dca6d. 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/GBUM92000020.