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 0xeac7ed48c16e41e5fde5cbe57021dd0820554292c6cd5de3fbe635823dc8c988. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f575faf9-16f1-488b-a94f-7fb8df70ab68.json and https://artists.proofprofile.net/proofs/artist/f575faf9-16f1-488b-a94f-7fb8df70ab68.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 0xc70f0244abfc332e33ede24c09eddbe8c1280488474c1259aebdfe37af9eea27. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/TCACA1479695.
I’ll Be Home for Christmas (feat. Donald Stamper)
There's Nothing Holdin' Me Back / / Mercy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51bc305866a96ca83abc2fe3a047d7e2eb377f8c2397538ba333a4f9cc87ac3. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:05:31Z), 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/QMF921750077.
I Still Haven't Found What I'm Looking For
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7857b154dc096a10062eaaa20c7f565d824642c915f772a5c9debd3461886817. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCADN1829223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec294c2c4cda33df2f5a3ad61e998fb78fac07cbde22265528ca94b56c40ccd. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/QMF921850174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd76854ba9e2f6734dc2494883d5cf5bde6f42ae2a5d7e3fae6c28fe2801049f. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QMF921850259.
For Once in My Life / Signed, Sealed, Delivered (I’m Yours) / Superstition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdf9d56ef2cecb82d1e4bf90e22081192b1d452acae730d2c9577ac46c87f78. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAEC1932496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c26515cba8047d4eaf61e6aeee6c50fb2de47034ed34fc70da133d420ff49f. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:56:10Z), 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/TCAEM1948921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe445144cb6b4257025894696ddf85c8dbfd551fcbcb851713e8fe2f81f749e3a. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/TCAEP2058085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b1b414b086b85e4e4e8f718ef9294c7f2cb4925268abcdd4328c0a0f78a645. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/TCAET2025189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703bcdd430dbbde06499cccae7a984f0b3026fd252a7e16041572c5911efe9cb. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/TCAEZ2018776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e6c5998f61be8c6dcbba187363058a8967bde3f6160376bb87acd4959ebd26. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/TCAFK2137337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00228a17a95dd954133a201f4c1c399bdba8e9864f85c1604a2f05c97e58de55. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAFR2125696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda13f5413bc578af45073981ee987fcb68714b9598eee5ff8c6e60bebcc00b01. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:35:34Z), 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/QMF922250133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52539b8ee841c45a6ee08007ebd30deabd6ee97710d35b5233b1b87471f0665. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QMF922550015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa75c368833dee1b1964b95ac203d7b1d86659f8aa40932bd7449a39ec5f294. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:02:52Z), 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/QMF922550115.