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 0x22aa8bc6c81d4b6ea1d0f8e50fd74678bbcf19ad68354fa0918078b0b0020b80. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/969a07fc-2282-4d40-b0f6-debb89090e9c.json and https://artists.proofprofile.net/proofs/artist/969a07fc-2282-4d40-b0f6-debb89090e9c.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 0xba8c976f036499618209466ab181fe6fa3ad7409190a5fa64424b461d6c4a01b. 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/QZNJW2449903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d57de419660adeaf18befd0420689ae1aeb74ca6388625991da7084f825a814. 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/QZNJW2449904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce32a758e734c3fbf78165241e685c5558e1c824f96c05dded83d1e654808257. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:08:44Z), 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/QZNJW2449902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee39455df28eb6606fb9fa8d0bde1a1cbfa31b232438110d99e896695043477f. 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/QZDQH2424089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980b1c67d04fd6bd95422a5a4d6245db05bdd3c23552e451d5d07b24fdbc8fbd. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZDQH2424088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f23bf09068bf69797f06aab77fdf8ec2a8196210ae900a721ec0b2c0b482cde. 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/QZDQH2424085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbfbff0fe541c60e5d1dde9860d212992f47442fe0aff7835ffa3b02e11a875. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZDQH2424087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511425655ceadc7b0229a03b32d731cda088e40b2afc5f4c7a38e4c55e664611. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZDQH2432642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd928bbbb2de15fa08529d48aad139a5fada0da08c6444391b025f7b84ab42c. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZDQH2432643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531d65215944293fc1e0d8c34a7ed98c69a35a7e06c29ba33f484065676ec8b8. 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/QZDQH2432644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb942246be6c748bd3e3118c62ce472ee11894359f090d086fb2455eeb57c83. 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/QZDQH2432645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe7920f483098ee75937fc14f310d088fdd6372435683788a3e9d34288e2053. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZDQH2432646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf68c66b3346066a64a603015f6ba39e63918305e4319c8505cbcb8a8e114ac. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZDQH2432647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1deff70499659282f13845b8705c7a5f03b874001e347c63dba8561e4fec290. 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/QZDQH2432648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6337d1678d9f990f86d969e814a40c3e7ed90285b52733af61fefe34074ecb77. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QZDQH2432649.
Popurri de Juan Gabriel: Besame / Adorable Mentirosa / Querida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5798651fd714282715df856e5e6e3fe225868f5d29e5e100315125714fbddede. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZDQH2432650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda6cfe9014b0937291037394c96cfa734b68d35b56ceae63ce83d4d95692d4a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZDQH2432651.