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 0xf929561da69b39e30f9d73fc4481e95f0689eee4f7d52d7ac685166abf0e1435. 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/edadb2a3-5eea-4130-8c4b-2e3b2b758961.json and https://artists.proofprofile.net/proofs/artist/edadb2a3-5eea-4130-8c4b-2e3b2b758961.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 0x5bd4be023c672cda7c5768c521ca63c1cbb30b611e6c581f1d09fb87d5e89496. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/USLZJ1989808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe872285467dffb7947ba8c13da849f2807745b443eedd8e1546982c96c6cb05c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USLZJ1989826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c00c6460fe1be7ff96891b6226dd669193a4cc6fcf347742a85cc8f5da2640e. 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/USLZJ1989825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe872285467dffb7947ba8c13da849f2807745b443eedd8e1546982c96c6cb05c. 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/USLZJ1989826.
Against All Odds (Take a Look at Me Now)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483bac28f761f453e404e0dcd63b5b35205e49b58e4085d1cff1b7b793557a3d. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/USLZJ1989829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a708bb37c187947e44e5155f3aede59688b71d9966c60fd315f67310b9d7ab. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T12:45:27Z), 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/USLZJ1989832.
Instrumental Piano Ballads, Romantic Covers
Have You Ever Really Loved A Woman? (Piano Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeff3880ed1c2f5663511938c439a35c2eaab53ea565aae9d9f30bb06805bd2b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/CAENV2227016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56bb303f7f586bb3c23703dec7b552ec3d72fa49f46b566c521399b185ae1a0. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/CAENV2227019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141039d564ec9b76f4ddfb6641910cbbc9d4e88f2263cef5707589f239e31b75. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/CAENV2227018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf7c9b8f4ff54cd63b23211a45f199f4c13e1cfdc0d1fe6b679e13d097200d3. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/CAENV2227017.
Tonadas Chilenas, Arpa, Piano y Guitarra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf6fa822a86b64a0c423a4edf93e5dda7036de78c1ea023989ff12443b916ff. 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/QZWV32453875.
Sugar Sugar (Melodica Version Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf54da0c16576b886c0b72b22cfe06e2692069b4cc191dc4fb67c0b6a82ce21c. 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/QZZ8B2498285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ea4596baae4e649e99637c3421d43f222f8ee3c3d91f78f9ea816c37e2653e. 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/QZZ8B2498275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf232f52d10d26cc8d0d6a7b8e4b66a9166e058f4986c6c88ba086722511614. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USLZJ2129647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb99c4048bbfa9d440c8d58a7d97937aca8f76bc3bcd15535d9ff30302c80c83. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/GBMJG2522282.