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 0x82f4c2d405ceec70b019ae3ae09d0dc6f9dd200ff897047db7b4397f3e454601. 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/2be4f83a-8bf3-44b3-b44a-6b283507b576.json and https://artists.proofprofile.net/proofs/artist/2be4f83a-8bf3-44b3-b44a-6b283507b576.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 0xf35616744b62e6c15b5e8ee73d0af09af3b984dbcfa626a1aa8f90715044814d. 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/QZ22B3001118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03265d5c754aa18a2781615ab5be1a8b51045ff557d45b13ef1b97d02bc5439. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZ22B3001119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c8e76b2b3c465bd8e27a0150e2aeedf175aa21ba1e2a4a13a2c0110c01a9f1. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZ22B3001121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929d84880181dbffacb6fc86ece076ef869f43f99448af6bcc3f593eb10b9fe7. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZ22B3001122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5326e62eb8d74282eeb9d62b3ef57b8619e92d1479ee5a4aa44a039437531cf9. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZ22B3001124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee3b4c788c1fa0dc9d52a8c78c5dd2971cff91de8435296d90eb9671ae9b85f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZHN32292438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689c6307d93dea1c9c788eed735d115ee1299acff06f8ee254c8526a35fa6ba3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZ22B3001129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb5bf9f0697bccf7d97e021c44d20f4f40c6edc6238a1cf358653765b6107c3. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:48:22Z), 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/QZ22B3001130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd916c9d154d0f228ef49c98c8cd0a3ed58af2a82f9df85a54161d96cb09e8cdb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ22B3001132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a2b6e88679f18387cb97a057c2904fbc3353f5aadd79260d8c15cb418db359. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZ22B3001136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2013cc7340f8266eaf259fa14c67b6bfdfcba206654f2431a0043bc77c637e. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/ARTWQ1301961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d0e7a1d438474a208973c1e64362e3d7b83885e4ec077c7cec7ba5f3cc4c39. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/ARTWQ1301963.
Todo Me Recuerda A Ti - Sola Para Mi - Enganchados
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a883b0ed914781dec5e65879e4806a14854636eecddeafc212ac27924b5a85a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:58:38Z), 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/ARMWE1900664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6b1ce9ca91f4c565361cac79c07db0a63caa05df3076da3c6dc9b444945d63. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ARMWE1900666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dff3dcbefc1fb437db186de1092a4656205e840d8fd200a9fb97edd7617bdc. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ARTWQ1302490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1582f4ad795cd088a6b7f44710533e5139ba5214115e6c0bd2879e8397f21ba6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/ARVW52000068.
Nuestra culpa, Vivir sin ti, Cuando tu quieras - ENGANCHADOS 02
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056e879dd1f4aadaf6fd5eccc0b2ab0b2f9d75d974962a8e4881f3c2ebf53f63. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/ARFQW1800110.
Decime si te acordás, Quiero ser el dueño, Tengo miedo de amarte - ENGANCHADOS 05
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6457b77b8b60c55dc41eb86bfef6243c498f8d46e600672cde41c1c1348fcc6f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARFQW1800113.
Una y mil veces, Como ella, Amor de hombre - ENGANCHADOS 07
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9009100dc59dee02355811ece2d86bc41b7b5fdb5a18d00bbf1d571e8653976f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARFQW1800115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a992e1af89648b4038ac9bd7f55ddcf51144ab62dd5b50687876e3c6e0f68a. 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/QZTB42528456.