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 0xb63ebebddf55ad6420bcb8885da1cae6f5cebbcb9b9452a76935d95e16a5ee08. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02d25636-15e9-4c09-9617-cf417e679521.json and https://artists.proofprofile.net/proofs/artist/02d25636-15e9-4c09-9617-cf417e679521.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 0xaff0451360b2f952341be8b76ae9f3ded3cf5c8fa002c7043c4fb5f95399a7f8. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:25:03Z), 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/AR10B1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5724518a66b8799f4b7b083340141668c8d1157a7ce9c684b7dcd9fbe8d90344. 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/AR10B1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf621d9781a05b12f3bdb81798c040df373c5ce644bc1c6d4be95370fce45cbda. 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/AR10B1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d480e62724cc4ed873bba20f6307461e0158943eb0c2f65d523a9afbd5b60d. 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/AR10B1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353c36601e91d07d3430335c725bffceb581fb03438a33509ffbf914d41720ad. 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/AR10B1600012.
Cariñito (Acústico en Vivo Guido Miranda)
Mi Niña / Mis Hojas Secas (Acústico) [En Vivo en el C.C. Guido Miranda]
Mi Niña / Mis Hojas Secas (Acústico) - En Vivo en el C.C. Guido Miranda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7649e27166aea2c0950bc4c8ae4a8e1d082908d8d72de24c47e8ded7e3ae0cf0. 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/AR8TN2100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96432ecedf82ce70ee0fe7d4a0d1861e47b754761c912333fa92114956138f86. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/AR8TN2300317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcbcc6d3dc78854464853214db045917f014a2c8b1ff40ca21264f17a896e0c. 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/AR8TN2400137.