thumb|upright=1.3|Araucanos and Huasos in Chile, 19th century thumb| A market scene, Ruana in Bogotá, circa 1860 thumb|A Peruvian chalán dancing marinera on a Peruvian Paso horse A poncho (; ; ; "bl
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75dd793e6a6ce3ec5494ed818841cc5e075376426ec2548b3fadf4f4975542a2. 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/88c8f80e-7a8c-4764-8559-e4acaf1b5bca.json and https://artists.proofprofile.net/proofs/artist/88c8f80e-7a8c-4764-8559-e4acaf1b5bca.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7d0128443223d5259e418976d9f3a52257cbe4c0db2337a2a34d59501c70f1. 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/ARF470900148.
Please Me (Remix) [feat. Paul Oakenfold]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0676bce76b64cd6cd730cc4d314a852ab5f6adddebf2e9108e6f3b5cf5819c30. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ARF471200046.
Please Me (feat. Paul Oakenfold & Maxi Trusso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee334a44ff5b055b569a84152d05a96442a7b9a928c531dd8525e8fbf1b3877. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARF471300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d3ed2793a17cb5ad3e2b7a931a15d97ed77ec71d4fce638f59dd3d3b061352. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARF471200211.
Flores de Acapulco (feat. Alejandro Alvarez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1356d30bb52927f1efa84357dcb85bc9659e440384fea51f436135b4c12d4cf6. 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/ARF471600115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4c88e8c6c667a662bf80cb2dcf838f5d39f11f32aade6ec28e1375b1ba0dae. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ARF471500126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73528e64be95013ca02b817719ba6cf57dd75a4ca95985fb3edd1a23aa11314d. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/ARF471600116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd387390b430fa0b7dc12bdc41f205d1a4a2b792d6096fb1e97e3d889e0cbdc. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ARF471600123.
The Love You Got - French Remix Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d53082ae96acaf942108b242e4004548f34a8a7ac9242708b191b6507b4fa6. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ARF471900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0b495677adcd226e6e64a347e2996de6ee7f0519dda9274c83df9f427d68aa. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:44:29Z), 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/ARF7Q1900001.
She Don't Care (Javier Penna Edit Remix)
Sola por la Ciudad (Hernan Cattaneo & Soundexile Remix)
Sola por la Ciudad - Hernan Cattaneo & Soundexile Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5cc6edaf8beb1048f6a5b15121ca6f70e1afe48767ecf0fe37ff0ef255496f. 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/ARF7Q2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfff4bdd4214c7e3262a235ff580499bc9a1e8b8ae0a1be4bf4fd38452772f7d. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/ARF7Q2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4448350eb88bf168bae47d67c952f92ff6a26d9ee6e5c270e3f063dd971c157. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/ARF7Q2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d64bed40e9c3b91d8e8842ae6b1dceb1eda999e0e8e23c4aa8c257645c37ac. 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/ARF7Q2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917a19e0e41aedfdb3038337207980630222618284a503ed16f8294630c0fdfa. 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/ARF7Q2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917a19e0e41aedfdb3038337207980630222618284a503ed16f8294630c0fdfa. 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/ARF7Q2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdbbc4ca4ebb5f446adf17209bded1752d0f5d77eeea6b819021b2f5870cddd. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/ARF7Q2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9b527f901c7ed2e5f2379e5d7bbf6761e33c723df94973c9a43ff0bf2db6b3. 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/ARF7Q2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bcc8377d9ea9f9974cce065ec73ac9f339dd327e89ff451240bf5834b13ef84. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ARF472200109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffbb49b26c51923329ca7468eb77f3a2a4bda9b6a575f64200149e8bf036ddc. 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/ARF471300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b233603100d3aa017cdb651995ef21e877d1226419515b617cfe4bfda7df22. 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/ARF470900149.