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 0xbe324edddedb46aa226ddbb109a4ad9597e6f360858a0f0644c37b1540481cd1. 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/681dfaa6-0179-4c56-ab08-29400c9330d5.json and https://artists.proofprofile.net/proofs/artist/681dfaa6-0179-4c56-ab08-29400c9330d5.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 0x79853f95d0f712d644dcd1d6383dbf9ac7f2a4912c9f2a3e1bb91de9ed709440. 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/SEBFO0300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79853f95d0f712d644dcd1d6383dbf9ac7f2a4912c9f2a3e1bb91de9ed709440. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SEBFO0300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5971701c9be5194c6f475d5bd2f83ad52a3b0757b36afd4034461d65e27dde94. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FIB3A0800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bceaca4d77445541524b130929d1cf3e8e1ea4f002b78e23ac8ac29886f549e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SEVGT1000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5971701c9be5194c6f475d5bd2f83ad52a3b0757b36afd4034461d65e27dde94. 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/FIB3A0800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a777f74c8bcd3cc4c8f957c9cf2623891f05e99292eeca6d3d7ef5382bc4a7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SEVGT0805603.
Pauline (Self Tittled) [Remastered 2022]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446dd78f8713aeff836d5f96865b838194b5f6936faa88d69e0bf5688f35dfd5. 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/SE5OO1700108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045539ed96bc12e0fe59bd4da8a782cbaaf2ecd066a373bec1b78960629b8c86. 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/SE6A92391292.
Nästan där - Från "Prinsessan och Grodan"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f97f0786bf6ed1b4e06413c8008a0a9418c9269b582800ea45f0ddfa4124d5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USWD11677052.
När vi är männ’skor - Från "Prinsessan och Grodan"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c47c654d5359fcef9931ad20391ab809780e753de09298829cc085299821bf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USWD11677064.
Never Knew I Needed - Från "The Princess and the Frog"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90d4668d0595da24317181af147780c6f74573747b703041a6d586299d352c1. 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/USWD10937538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55385104da85d84f8aa273e9dad821846181b58e4740bc830a3fababa88503df. 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/SEUM71300875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08bb4198bd0c59ef38325995ce39663f1a6ec33f99c81a6175af6f8db3a1db5d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SEVGT0602004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308aedfec29ed36f3f2d645422a5589fe15387d368b756dee1b9cca6bd6ad8b2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FIFFM1000001.
Slå dig för bröstet (feat. Nimo, Fille, Näääk & Pauline)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69add96d81e65ce0b4dc78cced90d747c828b5f2cef39d2ccd8ae8865f551329. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SEYOK1301368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454cd5e8786ad0e9649d46f1ced3088383dd68f0e511eb67974298115c4294ae. 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/SEUM71600485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0da0e102d9d4cb5436faa9849044e38bf7ed488b927c11fe607fbc75e68ff9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/SE5OO1700113.
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 0x7eab3b3a38a3d11d16b0a40086db6edd1354080cdd10715ca04123ce385fb115. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/SEUM71600486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f1543833726e3dbfeaa920f0ade9299a0613c34e6602da66a03187fb5a0e49. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/UKACT1720325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa3b3399069f85926e9a461755e1b8c0f70ed8f880939acf4c440294d9d0794. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/SE6XX2317011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac52439b25e52d2420e8e533fbc3a5c2b44cd1995fc586d168e6d9afc8850207. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/SEUM71100481.