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 0xe9b3e3e0c54a677cc1350c735f546e9905da5eeb67c98bc0d4eed12e64d96190. 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/48eafdc5-cc00-4644-8d7c-005951dba51c.json and https://artists.proofprofile.net/proofs/artist/48eafdc5-cc00-4644-8d7c-005951dba51c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Si Es Legal Es Ético, Si No Fuera Ético, Sería Ilegal
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 0x29bd3eac8b7b28fb3e94eb204dddcfdbace561621deaaa6edcae45605e4f185a. 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/ESA011707027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4a278a9a0bd76665047de1069829189dd4a1a35a3e3c9d1248429f845215ef. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/ESA011707033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304439d545be3ca7c0c937cbc71682636aad8bd73679f97c0b21d8e82830a722. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/ESA011708478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09a2c817d0025ff07f8262c06d9dae0bae715def0423c428a80efd98afa9906. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:58:52Z), 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/ES71G1948123.
Lo Que Ocurrió Mientras Mirabas a Otro Lado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf9b1e019f9b6dfc5ddc54e3edd7b72f053b2f601c630d82050a9be64bd500c. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/ES71G1948124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb862ef38c3fcb6fdd03414c0b5c0b0d1dd06104a46d4b3927577653399458cee. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/ES71G1948131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09a2c817d0025ff07f8262c06d9dae0bae715def0423c428a80efd98afa9906. 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/ES71G1948123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597b96f66616d5c5f9f5a90c989fc40b7e9e25f4ee11d33e4d26fc127dd78db7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ES71G1948125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b24aa24432cf53942482b0c4dc6a3de44d93bfb34073f41093090fdf2f324b9. 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/ES71G1948126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c96f8d4822cc2f621e6878a9d42c9aa7c3bff53b3038dfa24036f5e3700e8b. 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/ES71G1948129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12bc15e6fad30f6b3d06fd7097949dad50c4b81b3d6ebb600b59f666c583ed8. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/ES71G2203003.
Bienvenido a España (Versión en Acústico)
Vamos a ̶M̶o̶r̶i̶r̶ Dormir Todos (Álbum en Acústico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841b9553a25f3c6483868176dacf5e9c7073010df193e7c2e2b66d7ea2ad365b. 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/ES71G2242731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137e1a9e073bb61404a19c0df9de9d712fef9598bb38fb35567fd744bb49e2d1. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:23:11Z), 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/ES71G2242732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e85a0014cd559ed351f1f2cf167d733db35baee5185d4920654fbd028551f26. 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/ES71G2242735.
La de los maniquíes - Versión en Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f63f9b2a162441a294a3a4540d0e78da2a2d4cb48751bdf87dbcb83aa393b0. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ES71G2242736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04de23bae5661b7f4ff2bac7b2948dc114664da01e8acae9894e7455071337d9. 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/ES71G1771319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e4174a0d920a8a2f45161bd81b8f8d419088907d24c5001ea1428f3044e533. 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/ES17E2301814.