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 0x65afe7171ff1a7498adfdee8ef4223e586b33e7ede28d25254674c81a07dcf92. 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/76800d30-bb0d-4a90-bcb3-6edee686ee2d.json and https://artists.proofprofile.net/proofs/artist/76800d30-bb0d-4a90-bcb3-6edee686ee2d.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 0xe161ea0b091687a7df43c9de94b5630dd581e9901c9699b5df6677643921cbe0. 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/ES71G2229997.
En Mi Ciudad Hace Caló - Remastered 2015
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8864560478118e7c8911ed5e20cc65a448399697a48ea8a659b7f5855e68f1ba. 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/ES5701500911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083eb516dd173682ebe7e8b7259e913248255cd7b936ed9e488133b1bb49885d. 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/QZW9K2374400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc366e45cb98a928af6fbc7a721ef8b046742c0fba5cd5be8729148426b9c04ed. 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/ES71G2403840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc366e45cb98a928af6fbc7a721ef8b046742c0fba5cd5be8729148426b9c04ed. 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/ES71G2403840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2426819ec63366a275a888e8b01df5ece8f1488d4f0975f6ea2768a7bb8617bd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES6080848611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31f0c3d1a7dfaa862a47fb1f27ee371f24985d2c6d322298faf91dd9588c697. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES5701800866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda62dd703a951908e98dd570767d626a7e4f028328eec1eb5a90a08ddbf08072. 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/ES6080940102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a119b2f8aa52b17c67ac36b8e07dfbde8a2a5908948395fcc9b6b19e4c529e9. 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/ES5021200743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018d942cb1c20af9de53b30a7e4730248ca4f9b0060f692aeb79b22eb316a22d. 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/QZHN72250069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a18b2b5a0f95a7850b2e10651a68892a8c6468d7c785f6af10aed65edc0e5d. 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/ES6080840818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082bce9cf2856a972b19e0c53e24d4938385d8d1bdf188093f947a385ac547c1. 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/ES6081142722.
Orígenes Secretos (B.S.O. Orígenes Secretos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc875b1abe2b00e28dcf0ba23e0dcfff019dad5e0d1815f2796c9ec366d7c7e3a. 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/ES71G2039886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe647e706ecf92ecb421f8407823eb19c6f1ac834798034b7ada4c7da0efdbffa. 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/ES6081041312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7e78f6f26ede9f5fe6874893fe659621366e2ea0d83f914caa845a93a6b45a. 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/ES6920300142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0268f89ea3727d46f454423268a67bf8ca5540e6bca9a3acf6bd077d970b9d0c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ESA012180258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2917244f1eabbfc356e6900287a30440ddd63fc2225436cc57276993c52bd096. 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/QZNJY2135844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc226edc21d23eaf2f04a9b0c43f72683e9a5eda7fd87fc365033c306e1ffebfd. 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/QMFME1569737.
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
Este No Es el Típico Recopilatorio De... Hip-hop
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57379db2446d8b0b306042758f6e338e98ab5316b56b8ffc4a0ebe177b9e741. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/ESAAI0163870.