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 0x46b7e20de8aa784bbe06e2fe47b37910f539d7c1be03de68067fdfd2556e61f8. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a6ed7e8-0366-4a7d-a40f-a9b28e11a02c.json and https://artists.proofprofile.net/proofs/artist/6a6ed7e8-0366-4a7d-a40f-a9b28e11a02c.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 0x6f7ea6ace9b61817130d36ca3d92a6e6383ace10ffafd25b23926dd647532433. 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/TCADF1712171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5985fadcfc2fab955623e10aac57a2dee174f8795016e1042348b9d393069eb. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TCACQ1688014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b83acd94b765d5f4ab380549bc46e17f4f707628f037b4561c77bff85d187e0. 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/QM3LS1600002.
Annihilation Induced by the Luminous Firestorm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10072c317ff549d6b2e1c660e56e085fcb3f902a4404082620fc50bbcffeb5ae. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QM3LS1600001.
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 0xb67d78a58c11853c2ba3767adc7a30315a8632ac2cd1b44886aa93af8ce078ca. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QM3LS1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76c4f7441f94625eccee2c6218652438dff2a092af5bd4bab44b9c24dfbd76c. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QM3LS1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9d3d2919c1af99e0393155c25fdb26de515d4f97f3bfb245fff48c30f587ad. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QM3LS1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0efc9a2531aa0bf0cc388a849fccc5625acb9d6b93d79ae9bb1a694e8283f21. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QM3LS1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab5187026ec46975e614d9354650b4ad43f658c8dd34b84bfb6e32f29b8c133. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QM3LS1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae46dd9c2260e96f2625c35af20a9c2202df1eefc75f20db8f7ac59c558c1d95. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/QM3LS1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98c58daafeeabfbcb9b446ab1049b8ecdc3bd706ea20741f805c6e2ebb73f57. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QM3LS1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf41e01165a52828686013203576b745f243166e944344cd6260a7bcfa2903f. 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/TCACG1566296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4762f0b0f3238c5d59126ad157ca468e7382afcd6eb792a3ba96c754896b766c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/TCACG1566294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66656b85a81bb8f1a6ae44dc2e1b218ea0598c9b79e7d8118e28f828276af0b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCACG1566289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0261d115889c4c4171c0c4f2d9ac19eaed51cb308ae65fa80f1203ae32bdaa42. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/TCACG1566290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40afc61dd5a266463aaa00758f459c1bb56757be255ce52d4b3b3e270d51e975. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/TCACG1566292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce4fae116f520bbf2669834cd46d90ccce051a2b714f346379ce6a4a928d7b5. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/TCACG1566293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bcf0f54253b7e4a7ef6d7e17080fea0e97b66e27e98e88e841a3daacb7208d. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/TCACG1566295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a44770e975703facedde1adc2e725729c266d5593e914d47325bb6c868f43ff. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/TCACG1566291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23e6cd6642b854d83a22a2b2af0b1d6df09a5a746d32081e6f57a50e41a7993. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TCACG1566298.