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 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 0x0f89b632489bfe70517535d7b8acbcbd65d1ee56cc748d5eb006d2f48966ad02. 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/2cd3b02c-ab44-463f-a88e-4d4c016b0e4e.json and https://artists.proofprofile.net/proofs/artist/2cd3b02c-ab44-463f-a88e-4d4c016b0e4e.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 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 0xa05d99ad499cf9a0c388e1675636ada6a9b8d0c69dd04b9dc153b7a04937c193. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBENT1654524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857f172a1af23d2510e54be9f8471b84a0594155dfa274c71071555be80c88fa. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBENT1654535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a2d6c47dfba24f9fe5375e12dc9ac61de105be8023d3de6d0695c1451c8d7c. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/UKF4C1601415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e5297c3c3a0409b6515cf83f32c6f7595840679316f8fc8948f9e2645d7e0e. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GBENT1654561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cdb92fbd873afc5b7fd5791555c190df7e69a0d7e9c1b638f7f49dce3cbef6. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/GBENT1654571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24149d8085f4393c2d64773f5fa120f95dc3466cef22d182e58bb5e0abc26bf3. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/GBENT1654575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a97d77edc0de84aa9d620dc968f8e4521166e63a04298750368f66d3c3d726a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBENT1654788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440fe00a68c8b7927246754655ad47209e737f98bce7b10917cc26528ac0291a. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBENT1654880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2021f45fd6c2db506ca1e45cd7816a5e042674ca7c7059a2d8e6bbcad3d6e4d0. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/GBENT1654897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde86fc9a3a329d80a7f15a242b1da43af6ead502cd3684ba4ed5274cc3c0a216. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/GBENT1752580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1792b7b57506e4c5d5b911a7b997795ba8b5db1b4b28d2ed573fc81ba7e360f2. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/GBENT1752660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11d80c84205efad975ac824f6610ebdb8c93f713c5ea96579dfd2a194f3d929. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/UKM6J2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb106f1bf01ad5256646c57d8d8f455c7fc8175857a75ed9a68ccc2853a3084b. 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/USNRS2241817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b4a50b2f3da8c19e590ddc18c47203bd200a8dea219f865a9e37dd6c14f959. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/UKACT2131115.
Music With Longevity, Vol. 2 (Compiled by Micky More & Andy Tee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763ee23d363faf8757e497a9830f0f2f780ea2939111c00266ad6b8711303618. 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/ITX4M1900052.
Things Will Get Better (inc Moodena Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38570bcfcde946c9cd0ed44ded669fb40b2ff91746ffa36a0dee1e330366cba. 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/GBENT1752603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e79cf2ebb6c8a0ad0be10735493f876ed431e74c9f23aebdbe471c818ac2d9. 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/GBPKF2000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4c98acd06c9b845d0f41811a8ad9dfc7c477a688c76409c202323218a239fd. 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/GBKQU2269143.