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 0x1b10714bd8e879e70640d6d7246631e8a31a1149cc5e3a217fe0cffbde151310. 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/980fe242-319d-484a-b680-6b9ee4cb5f7a.json and https://artists.proofprofile.net/proofs/artist/980fe242-319d-484a-b680-6b9ee4cb5f7a.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 0x24b81b1593315e339ff45f559f51ce01986ab2dfa508b69cc72f1aa0863e89a5. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T01:57:24Z), 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/ES5018410000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f29ef17e1bedab62131b61e68b999994458457dbc095d8b03d3df43309c3f3. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/ES5018410003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397126272408d2b5dabfed3e6e8233ac4edd2b2b02718fa7179dd08bafbe4651. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:39:41Z), 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/ES5018410001.
Paletas y Bolingas (Lo Mejor de Decibelios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c29e1ca8fba5139bbd5c60bc73dda78b711812236550a83febe759d734c13a1. 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/ES5018610007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6793828167de1bacf9b74bd8b798c835f57e3222f268b977cf4bb1b9f2a1ee72. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ES5018610010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff23d7e704bd302728e4cfd8f12dcaee6138734a4a89701ef6ae322348701aa7. Chain 2 (Bitcoin): anchored in block 957648 (2026-07-12T03:52:24Z), 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/ES5018510000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68eb6b7a000e7194e5f11d62213f2b67a96a3f158b7f14b08d12e954df39eeea. 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/ES5018510005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee46892285bc8114773e55e9417e3d6bf6313f6f9931cddac687d51ab70195ee. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES61A1600798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416aaa0ccf6c759987afc2ac4023c1f6daebe94d6c6ec2de70e724d2229ceec8. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ES61A1600803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee46892285bc8114773e55e9417e3d6bf6313f6f9931cddac687d51ab70195ee. 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/ES61A1600798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaeb4e112c5d18816ba36b601dfadfff69616ef121bfbd4de8f2c932f0daec62. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:46:05Z), 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/ES61A1600800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416aaa0ccf6c759987afc2ac4023c1f6daebe94d6c6ec2de70e724d2229ceec8. 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/ES61A1600803.
Las 100 mejores canciones del Rock español
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc26d1c77f4394726d7d0eabc9a19bec74374d64bc6154c92343dfccd9bf38f. 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/ES5018410008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a28b4b930dcc4394a1f4c88178d757d8661d136fea38baf9cf7c301cf9b8f36. 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/ES5018310000.