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 0x7981e7434c2769fe07fc89ecffc0f926174698555fb597b3f48b5da9e9ccd3e7. 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/b29de9d6-d478-4f2e-8299-8e708c9f61cc.json and https://artists.proofprofile.net/proofs/artist/b29de9d6-d478-4f2e-8299-8e708c9f61cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Won't Forget You - All Stars MC Mix x Sluggy Beats
Won't Forget You (All Stars MC Mix x Sluggy Beats)
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 0x09251d9c68a4fa75d8cb6e2f0a9d5b1af1dbd0f99f69129aa551d978d3b5a500. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBUM72311190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f31074a88bd23abd50bc6c258217afecbd0a065823c59cfce54b175d1258082. 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/GBUM72311270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4afece6a05cfa800d5d06814b9f2d6d475274e8011b23605e0a9612301c9f5. 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/TCAGM2222505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab8b75117defb87fd1475b693fdbf96b1241f363d725508a1efa76475db6d68. 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/TCAFR2192871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6827ae4a5e100e5e92d2b9c3c802a4068106362739dd1250e61bfa85088c1903. 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/TCAFR2178586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5346da9bfbc88ce443836e53345336d9857ae52096c2d3bf347dc37650f12f8e. 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/SE6TI2313898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d512a8332444d7ee30385f4025a45fb97dedd5df0fec14865ebad0256173a7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE6I32238622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35de6af8e96534d502b99afeeef8d8f9127049b1b8365aba32a825208d5cdad. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SE62M2174792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ccf7dff12734497c7bee87499c56a3d21314c21a52177b535459e5570abfda. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCAFR2198114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ba91c49797e6d42024fd6eecf7a821af1c014c63e811aa7947efe4975cafd9. 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/SE6I32332884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7096d32ed1f1671fc5286a236e5c93e54044c6cbbf72da7783f1a297a416299. 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/SE6I32332885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80514deb00111b0dacc37b36fdb79849d091291568c315b4b8870594b4795571. 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/SE6I32332886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612bcb7f6b980aab846fa25652d6347c4ca26b768737d28d636a0b1fb5f1bf17. 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/SE6I32332887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040389a6eeb24b465772f39d5e07c7fa8e29099861625f54b431cb1eab344a51. 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/SE6I32332888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ed39a7feee4acfd31f2ff69d26dc75d0d16d67b5073f4b5f90f0c953818136. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE6I32332889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2468c0aaf06996f08fc3d921b8766e65d3ee5ad6f35f4001fee66fc28e8e2f6e. 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/SE6I32332890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248a7c8d9791ba9dd49468fb36813c3e569fbc0ed7d214711b7b666ab161bab9. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TCAFR2122995.
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