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 0x1436db69128c53211bef77789e9911d78d6f42d87045e8ecb6dc6f9a46959042. 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/f7ce7b2f-8e11-4c74-b8fc-53506ecf9a44.json and https://artists.proofprofile.net/proofs/artist/f7ce7b2f-8e11-4c74-b8fc-53506ecf9a44.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 0xeaa9198f217ca1a10748833c41630c518a527e21d4dbc30ed576ee9eff19eb22. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBCZL1877713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6369a139ed2be5b828f4b95222a2de127c8e23b3d894929142f34647415803. 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/GBCZL1877714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b56d29c9c46c117209fe40474f2ae34933fea6f37f5f0f6b6d3eb099a19ebae. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBCZL1877716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bf988676de8224f290d96c9f8ca4bbdb7a522359ab001155376f18fb3f158a. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:27:10Z), 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/GBCZL1877717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7720f4710f41db165eb9511621b76d0df06717054e1061812ffa31ff938fe905. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/GBCZL1877721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45960beb414d5a8aa115f1a740d6748260b76bdc875fd1d51cea3ac9b6673c1. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBCZL1877722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50152ffad23b75c173ba708ad6f346b28a3bb37ef2d4db0e987aae656de574a5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:59:59Z), 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/GBCZL2177901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7cc01c10e3501aa0e56d9355ce6d2085a1f17ac4271e222b283bda436df93f. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/GBCZL2277911.
Buddha Bar Summer Vibes (by Ravin & Charles Schillings)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcafff66160db49e83bfbf58e23647516bb43a78364dbce66bc2dfc0d8cc3aa04. 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/GBCZL2277906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2017bed0891cc5fecd7bf4df8214d0b56801cddb3a46e9721523f70cd12dd49. 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/DEZ651208528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1061a4530b7fee68b649d24c8672c2402e9c76f4c7026b71c3b037377e70330. 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/DEUM70706336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab5f08877b1c728f005d995f258b4bd024ce91446a9f020843f29683085cca7. 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/DEUM70802211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14bbc2cccbafedb2f2971ae86ad0cb392bc4b37ebd1787149ebc02d0bfbb8129. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USV351422064.
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
The Quality of Being One (Remixes, Pt. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1be608e6c0ee27734b5550b89a57e879383fa6f04d824e130b850866b9a3279. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBCZL1877726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e34d620a31fe1152dd2e626f7408aaf1cd3554f1766cc2d29645bf7f3a12a3a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DKZVA2000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf9387414f644ce78f9042683199564f0300d2234ab9d6c2a281afa41b947d9. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/PLE951500259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d878c398a794548b4dcc36872134e09f2f463c5c99bec5dbabc39d2f041269. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/GBCZL1977783.