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 0x4e98aeeb7a915771fb867c0d6a57516535920820baf0c70f518818e26350b63d. 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/458d04da-1f0d-4670-92d6-7051280be6ca.json and https://artists.proofprofile.net/proofs/artist/458d04da-1f0d-4670-92d6-7051280be6ca.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 0x8f76df9dd4367e8fdcc8c8abfca504c923c32c5756c3790e6f33cc2a3b0ba080. 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/USDXS2300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7146055a33bb6952ff84fa68c61222d172103be2dddef4e35ab80cdfe4983d19. 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/QZ9QQ2300547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd0d5be6f7e1cc6fd90a3b9e63af13bdeacc5b4d7ef471e0339ed06b83b7275. 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/USDXS2303303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340392d8effc5136daad24e180ce31edeaf825a1f7a460267dd5bf4d9ea07b1c. 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/QZDQH2157273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61693e893ea95ad3067a256e2ef1679367af7bf17abebb4e3e6f149c3f7be3b. 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/QZK6Q2004640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfac3421592e6cc56424ae39ae76bcdc9b0dafd333b7ae9dc11dda49263a4982. 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/QZNWZ2004057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf200923892478095f59d73aae8c57e6154d140dd2ebba8f1408942b9efd9f37f. 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/QZHN81958797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca44482c6d8f82caeaf0e9bd1dee31bc8ad80cd9be954bdac23698acf0edef3. 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/QZFZ31930228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b44b7bec2e4dfd8d2304995940d2f6c1a52e1c5b604750edf00938286047bc2. 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/USDXS2401120.
Morir y Existir / 14 Guerras / El Mundo Es Tuyo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55fec5c36cb276c4c6c5bb8ac6823fd0daa3b00d5fbd68597c207e1b8a8875e. 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/USDXS2304285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1665af9562414444fe9184bf71be8bcb878a0de13227d02945dc6238fe8c78ea. 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/QZNFJ2210258.
Popurri en Vivo (Tambien las lluvias se van / 27 por los radios / Quisiera)
Popurri en Vivo (Tambien las lluvias se van / 27 por los radios / Quisiera) (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf47aaea3777c8775b9f1d8f3503bb9d77c2be070afaaecfce0e89e7ae6e9c80. 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/USDXS2204477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff4911473655b572e06d5ca6945489670aa520a2f1d87133db71d5cccfe91b9. 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/QZNFJ2207376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72131124f360b6e789208f109088ac4672a06a89c2128fb0932449fc5b9b64e9. 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/USDXS2402370.