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 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 0xe96ca2fd9f930cca2ac7b52498483e1208992ccfc40041199a275c649883bac8. 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/70c10ffc-7e10-4225-b662-296e8907cc18.json and https://artists.proofprofile.net/proofs/artist/70c10ffc-7e10-4225-b662-296e8907cc18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fucking Bastards Records 005: Tharoza - Mad as Hell
Fucking Bastards Records 010: Tharoza - Disrespect Me EP
Fucking Bastards Records 016: Here It Comes
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 0x6fe090dd3fc42bf14abc4bf856c47d0700e4aa2bd5ca7401644ff8c98fff72b8. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GBLV62026491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1168d094f3e2332539ccabc22b418d3486d7183c9899c131b869097ef3db47a4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBLV62026492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584aa10827f01bc4da8dcdc3572f6472927eb6af193b6ce48e0e9702b5cdb8d4. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/GBLV62026493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c9096dc0ee80eb582ea02d6c1f85ea689e13aa818f0d85765090c3e52efef9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLFL72000652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5394a3282ab5cbd9a98d40e1c77ed9267fa5c0c1af38982ded6011755d8efc. 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/NLFL72100574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e639ae31bcac7c90577ddfbed79531475298fc8068c4fd73b35d1a95fd12f5a. 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/NLFL72101000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147be29a25dcf34404b52b71d461330c6c38b34eb6f9d3be59d211ba26a2768e. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/NLFL72101177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043db2c72d64156f59b2155e1487dc9f463aab92afa35ce983e6338a96e42140. 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/GBKQU2239290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1d85e90691f131bbe5bc3e0adc3b3258536f990f2a6f862fce4a88c90acd3e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:01:46Z), 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/GBKQU2350267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadba6004f004ac62674ab482c9ae72d0f3c55e1c2ea586332dfa7840a591eab4. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBKQU2383279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf92ea642b0be0b4ad0ce40e95f02bbe7fc917195e4786e04faafd26ed2ed98d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/GBKQU2424163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043db2c72d64156f59b2155e1487dc9f463aab92afa35ce983e6338a96e42140. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBKQU2239290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a939abd5016d0b486f162dc5e32e141eddc90fc6f581e0958b09f78faa4be0. 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/SE6I32308118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d4064addf979462bb4ecf49f27423afd09f9e9aae4a5b3a7c8ffab3b088203. 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/NLQS92200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90c64e85338e347f599e31eee1bbce01112de54b160f46a094f47d8b11f7befe. 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/QMEU31922491.