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 0x96c361e2c1d57165f72f96726a485894dc68846ea480a33a72684634b4d57063. 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/ccbca1b2-3c5c-4be2-a69d-c60388a655dd.json and https://artists.proofprofile.net/proofs/artist/ccbca1b2-3c5c-4be2-a69d-c60388a655dd.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 0x2dc1c1ae01f2cd889fd59076dad92a8af5e1d96c2d36376c07048066cb99abe4. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZ22B1801133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a35cb4b8500213992a57df250b4311f07082aec2f5bb94a7d2e0c0a9906cfbc. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USUYG1170150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb536a105855f37de726365a971f62190c7259c948f195b5df83b509133b1d77. 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/USUYG1180657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d4cca781517494f339c3acc207be34d07e7db26602afc22c0947a2fb6cd52d. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:36:33Z), 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/QM24S1804360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40214fddd8b9a3547bd7cb299e77cbc1d16a5b71d1f12453dcafa588e72dbeb2. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:10:09Z), 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/QZ85M1801058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40214fddd8b9a3547bd7cb299e77cbc1d16a5b71d1f12453dcafa588e72dbeb2. 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/QZ85M1801058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7240464a6661048628606bef38221069a0d7d43335cf522740ac3141b02107b6. 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/QM42K1958931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237ad6937fd11523c073c9e6fa010d09dd56358c436017d0c14b1005239bb9cc. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USANG2064533.
Better Than The Real Thing (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126f4ebc5e68b3c41ae0b611d7ea4179833aa426208da0572dc22fdf44552fbb. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USANG2064534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b64662fc5df0298fe97e58b6cd18f801a50969ede3564b6c659ff42068b53db. 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/QM3DF2141874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29190c536dcfcd6bbf1b2a468f4bf5bfec96ba0e288f7ee017e447b112271f21. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QM3DF2170327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a573599a91395784434e6c20947e78204a079b8426d27d8d12124f632f1822b. 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/US3DF2269105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafe3da3b261d7db3aa2d34c5008e1c1c18c50c1ced9c97fcaa53e482e577f5f. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T16:05:26Z), 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/USANG2246249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd6202417f89ddfcf33fbf82806377e6d914a4db052aba5efe85af18093ebd0. 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/USA2P1842405.