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 0xe414d0e67ae7a1725ad9df264259ef6d7054cf46775a01e7a0ae57c6ed924294. 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/c31082d9-3425-46ed-a8ba-9e5ad893a341.json and https://artists.proofprofile.net/proofs/artist/c31082d9-3425-46ed-a8ba-9e5ad893a341.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Julen y la Gente Sola Live On Pardelion Music
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 0x72e90d12f4a57c4a414453ce065568cb28ddf83061dea0739f1d7741c9b3bcf8. 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/US7VG2006185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21835fb132934446650bcfbfea579742dfd2d1fc1be9ed2cb6c56fbf8b60b9df. 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/US7VG2006188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c44b09ba0d8043dbd75609dff7ba16b2c7334831d52f0c4e5efff885e7cba6. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/US7VG2006186.
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 0xfded0e5f27052ca7faf29a2413b98fe17b3be9cb490a4b74eb3c0f28e984598a. 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/QZHZ41931365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1868c340a9a160c4c8bbbf6cb6a439cc89ad122c4c2e4fb4b70ac6ea60c18e24. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZHZ41931366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbe6d0de3cfe95bd93800ccc797473e88b75ba719b1092eb058f6551013b061. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZHZ41931367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d778e21467d599e0b8d2df778bdc5eeef850c63cc375ad41a59a65cbb87a22. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UYB262000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017ecf964c34489d85b0d103ee1650451c0d6b3a01aad636b6f6ec9db8ce8d43. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UYB262000003.
Javier Cardellino (Live On Pardelion Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4c5204577f5dac69ceff0e6fff82431d873cf9fa2a072b2335edd4cab0ecef. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/TCADN1896840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541bf54c47d90f0057c9d778ccbecd9e655a54396ed2a41848308a741fb7f998. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCADN1896820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6aacef09119e18dc1ce1a198c73ac67969b5c9e1e5fad51b91ebf44a4320e74. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZHZ41931368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae93f9149d2f147ef7427d44cb0b9013d3c5af3b6d4a43f168589db85658b385. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/QZHZ41931371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed93cea72bbfd7adc2ca9099ed3b11b851e1c00497d26bb1e8002bb671c64d4e. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZHZ41931373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef31139f2883eb72ea17630eba31a2f654159aaa142632c989925878f6497818. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/UYB262000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9742c89f702d5c7fe35f47b7d31884735854b617f4fd841751f7ef3a755aedd. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/UYB262000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6657247283eba1ff553eebd7ad72a2334144e77a351389e294579249dc4ec3d8. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZHZ51917938.