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 0xed967243adb7ff986c6ecac5451e775d489c5c5a2fe60534380d7283e41e6db2. 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/02557123-1627-4dca-8e95-7af474782433.json and https://artists.proofprofile.net/proofs/artist/02557123-1627-4dca-8e95-7af474782433.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 0xe755cd18af68e62a9fff28f49dfd55e3444b839f04b0673a68aeeb023bcbe2c8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/IT2WZ1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6740142163edc0b299a36bc139126563b383fc94c3c2e9788e23dba1c510ce96. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IT2WZ1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c311d770f25fedefc45c9ec9b8dd38c592680251b0e200292cad27041b7a00. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IT2WZ1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545f73f01fb8144af0a0fc61d7893bed3664e988cfeb9e1c60fa97c23195af08. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IT2WZ1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95808ef789958aa7b8b63555302cafde0a16c06fe1624b6717b1d712a6b194b9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IT2WZ1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdece0b8d35be0d87f8e6b2369c84dfe4db54f62aefbcc2de491b9df70b29c03. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IT2WZ1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d8fdc64ff1f25da607277b57ce75882da6ca09ed2792af85bc4c9eb263510a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/IT2WZ1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745911937925e22451ef50907a40b21be2bcd9526b8e7d48797360cfa434bedd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IT2WZ1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9594929f456b6dc7c9018227fe71a3d06fa6d3d54363f9717a2157ab4c270b2d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/IT2WZ1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592f5cfa5b1d448e430986b912216997cdd1ca5a89c8457850a452c6b3c0535b. 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/IT2WZ1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a5b31c2ac0c465638e70df07ade92513d59022e377a6dd18c1247061ce88b1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/IT2WZ1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8ab7630f586c49de270bff598f1404ed1fa5cff2101cc6f252708c7e666abf. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/IT2WZ1700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fb4e8b4cf471efefb254e68cd5c8c2330f1ff5a09afc94663c9ceddd021efa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IT2WZ1700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dc3c9b18d2e31fd2421000e51c4e419da545af12f1c8cdd8a9776950c3bcd5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEVY92100071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4de3e195c0be546b749e324cc7e8428c1114ecf04d0f362e6424014a9171a2. 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/DEVY92100072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938320c7925b18b036285db9cafb208e15974b08185c84cfdd3a4d5dcb0bc86d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:35:12Z), 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/DEVY92100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf48cc97b59772bf66eb38b1447f337874854f0d2f3a1f6e160afc68b8e285d2. 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/USGC61600556.
Regn​è​-​Gnegn​è​-​Gnegnè (Jolly Mare Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41967f5816293f477c3275016a0b15fdf1850dfe8f0b7b9eb058ae49fc34bea. 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/GB7EJ1300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797977e3b3e96ab172953ce7fcca1a095975b9f278a2a796d490f5a1ad60d808. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GB7EJ1300037.
Niklas Wandt - Luftkraft (airforce Wandt) [Remixes]
Discomania (Jolly Mare Lifting) (feat. Jolly Mare)
Discomania (feat. Jolly Mare) - Jolly Mare Lifting
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31514e32300502c03b78285aebc2fe5407914225308597b93a2a2977b424926d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITZFU1700634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5447ec01dcba7ab41bbdbc5f734b08c953347d43b6eabb3f722f6822f3ed0366. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM2SY1700011.
Bastard Jazz Presents Year of the Monkey
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6c855060d01ce37dd87e4759a26ee85576fb995456b9ac1668274360f970b5. 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/USGC61500496.
Bastard Jazz Presents Year of the Rooster