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 0x5f06cf9c5280f3dee9376fcdd8c70c1e7ee771e45a516f0ded746f19841b5012. 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/1757a0e6-7421-47ba-88c5-9b37b887782c.json and https://artists.proofprofile.net/proofs/artist/1757a0e6-7421-47ba-88c5-9b37b887782c.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 0xbeeda5db5e448effe568fa2eecb377cd93f5864c22450ca541626d76510c09b3. 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/QM7282344457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab4831135ba7764e339692158cff24e708bc61435be43e1b1da9aa7623b7a83. 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/QMBZ92311273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f53531753a180bd46ff9117d2470b49e58fb405f68b10618370fd913293025f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM6P42365760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b819da1d51da1f7b77a402f0b23c358ea9bd2a753ff8c096b334cddfb1ce171. 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/QM6N22345191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1af098bf94eab62d780a84c70bc0774d6e2a8bd1ff55c8b1a88f518322b3742. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM6N22345198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293afbebf0b1daf0db0db7ffba260b9b70bd163ab26829e12c63c552e4b5746c. 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/QM6N22345199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c47c356359a7e0314ac2c84ad11c0edc77e53dedf3c902fafbaefea6c1c4636. 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/QZGLS2397672.
Bélico y Cholo - Con Virlan Garcia - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ce33a6b79e348a5fa5840018de940914007620f02f5f756ed7c3e764268710. 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/QM4TX2364598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0bf23b61152f5597a8aa299e92e4a6e4e332da295d7b83ca919e1718ce7ec0. 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/QMFMF2213009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7378a6dbc24e04198f074f995c77ea4b6b61c6603968c5f6059bdc7a9af02f. 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/QM4TW2371086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0bf23b61152f5597a8aa299e92e4a6e4e332da295d7b83ca919e1718ce7ec0. 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/QMFMF2213009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d82f7be51b10819a8a600f96ce6f64cb8d0399c5fafec87bf02f7bf5992a67f. 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/QMDA72298155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd656ba3dba8f1bebf9b577503c5594ca9b4224af9418cad416ed8d06e8ad8c06. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMBZ92289427.
Modo Bélico (feat. B.OG, Daizak, Chino El Gorila, Daniel Martinez & Jose Dolche)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7f1e839f297eacf6609670ad6410dd26d983612799f5277bf3f1f1ccaf65f4. 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/ZZOPM2240987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebc4a6c194eb107eeab35a727792580ac4ab142c01ff7926239c1bc2227343a. 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/QM6P42215428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b1375fcfe874b3592b1b82e6fbba1252cb78aa9ace1305247b4bbdf0d8cc68. 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/USCGJ2236702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceef37d6a76a81a4d1ec37504f961c5b4d3a81c3242f156e09e58fd24c21c625. 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/QZY5J2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e15cab89b0204cdf7cf7633426a6f554c4ffe3ecf789f13edc703e12f0cafe5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMBZ92325076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7beb2cae2a5ac2299fce22c2d9932206a1c6783c1a9fa23bd6629221a47d74af. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFMF2346943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4177bd899ce099401b179f14b8bdf5e2168060e36a9ea6bcd46a50296a5f0dba. 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/USWL12302699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85253fbd447f56e5bf7bcbc3f64d8638535456e6690cf1c312b22f7edd58dab4. 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/MXF012300299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c44ca75d9b3f56e938a262eb786f2718ec9d08793421ea9e956fb8e4ec73838. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM4TX2412433.