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 0xab4a56330b80a93042faaefb3f9dc2fc75d9fd7ce233ffe101b416f1379803b0. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06b12ee6-3105-4fe3-8191-50e0524d3f88.json and https://artists.proofprofile.net/proofs/artist/06b12ee6-3105-4fe3-8191-50e0524d3f88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Arturito de Barbate: CRNVL Sessions, Vol. 1
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 0x1db8d4f4b23a7edb259b3def1332aaf8484dbf3106e8f6b76c9e20531c963eaa. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:05:29Z), 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/QM4TW2563180.
Miriam Ballesteros 'Loba': CRNVL Sessions, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789bdbd03e382624d6799f505aa026d1398d609031380d82d25b38124d801833. 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/QM4TW2579899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092c9b03bba28b76695b884feb1e58851b31c97c5cd1e9e241f9c6fc5de1d9cf. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:59:07Z), 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/QM4TW2580114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840d6a57cd7a1f9b2a1ba1afe7f547cd09e2762dbc5ce537b4eb0cef774e402b. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:37:00Z), 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/QM4TW2580192.
Adrián López 'Waxi': CRNVL Sessions, Vol. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb351a6d2e4596f726ba43670457246bb0c33a56b15bbd2862558aafe57f9d219. 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/QM4TW2582376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a04a4fba0b89473901e93525fa505429dbce1660ba4f03b3223855ebfbea273. 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/QM4TW2582815.
Javier Tizón 'Pájaro': CRNVL Sessions, Vol. 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec63230ddfa130499fd0087993e6c9022c524a4b5121270ec747a717d190ed0. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QM4TW2584761.
Ramoni de Castro: CRNVL Sessions, Vol. 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca9e2b0947265c1d31383dfa09ae86889bb8633ee555e079b99109dd2f5eb37. 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/QM4TW2584837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e0c4acd9eb85a8a1e16afe72afc2e2d735f6d40bdc5500318ebf965bde410f. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QM4TW2584841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22250275a56542031173bb8da40d0b938354ebd1b759eb61f58848142a32ed03. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM4TW2584891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95dba070d0e4d33aad5b43a60648843b0cbd57b7363ea7289a71894d24c6d218. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QM4TW2584915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc16cfbdc0eb58b00b024c1ca2f269e3aab77e312c24141a5c8a11d2f03fb42. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QM4TW2584935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27fa6975799260bb9c9d4773b22fe49f7bb285bbc694d18f130e817ef4822fbd. 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/QM4TW2584943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1eea70c94e0c34dadeaf66d71ba23abd73ccc07a0acffa0ce621f3781d4fb9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM4TW2584965.
Jesús Rueda 'Cateto': CRNVL Sessions, Vol. 15
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbede084b6aac1b08e59fe02c0a3ef64ae07900295e2a7ea629cf74a608c9fa1c. 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/QM4TW2585081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692229bb7b281957390a1b0cf70d210a9f031405569e3a94687a8b625aa80d97. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QM4TW2585137.
Miriam Ballesteros "Lova" y Brenda García: CRNVL Sessions, Vol. 17
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce63f05bccc5e983b27b817b762225a65e8a2a03f3d26b2b14cf6eeb532d692. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QMFMF2570777.
Kike Lozano, Rubén Vallejo y Toni Sánchez: CRNVL Sessions, Vol. 18
Yoli Álvarez y Lolisa Armario: CRNVL Sessions, Vol. 19