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 0xc05854c40d52c48851c3c20a520f19bd39145db0dc2518783d2b5dd2b0986d85. 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/014eb759-7b5a-4a8d-9093-471b187e0e93.json and https://artists.proofprofile.net/proofs/artist/014eb759-7b5a-4a8d-9093-471b187e0e93.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Música para Despertar los Sentidos - Piano Salsero
Música para Despertar los Sentidos: Piano Salseros (Instrumental)
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 0x1ff8fa962efe71a89b1fe2636673185eb772fe9cf09893998e2339b9f21da70c. 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/COF020700855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ca6ac038957a39e2ae41bdaa5e1eac8ae441087d659bdcee69faeee6341420. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/COF020700856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebdbc1e9241664f8c4a170acf1098139138973674682e8264be5ccf7ffc5019. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/COF010701234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4aa28add177604b383ef8e40930ad09b0137b25c4ec04298210a4a96544c539. 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/COF010701236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2811520b423f3112b40b410aad509b06045f1ac0154fc8487d704910057616. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/COF010701232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71533ef9395aa5180a2ff78ba6d7de3b463158d9b2202b7d80685921f862d0eb. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/COF010701235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4aa28add177604b383ef8e40930ad09b0137b25c4ec04298210a4a96544c539. 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/COF010701236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904982bfa98b8b9983f2732b4d3a5273cf1327e34e1be3798b2d438be1978d3d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/COF010701237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029304cfaaa0785d04c82a4688c0307cf3072fdeea7c0cd01b2784e34c93728d. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/COF010701239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa6e5d4e3b37ff7bcc1b877e6abebecfe5b67eeec907aa7b0701cc887fc77af. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/COF010701240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c288f145b084ede80011b2c268147bbea0a1c30ae20d0e43bbe2985c06bc6b8. 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/COF010701241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7989cd543542072a3d21946a5fb69ae54e6a98dfbe8199b2d4faf12c070e70. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/COF010701242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9318e3169a642b77c1f58b6eef48378ff85645a79842573802be5aa13b04bcde. 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/COF010701248.
Música para Despertar los Sentidos - La Zampoña
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de9a4a6e1a78c0f825e03e4807f192ec5f70ef07b2791b6fbcf8353c7c3983b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZES82262176.