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 0xf90c94018e444f3a077c749923fc4c120cba604fe0d52c67721fb4001c3f3872. 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/491eeb15-4c6b-4480-bc60-24c103dda22f.json and https://artists.proofprofile.net/proofs/artist/491eeb15-4c6b-4480-bc60-24c103dda22f.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 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 0x5be9f4b30c74b11314048080256967632ac7858bb04012a0df890e2b71914a99. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USUYG1426430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe624dca6563b7d26da832203054cca555488b61d15199d3a869ca9f9fe384eee. 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/USAT22215225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37face7cd931456412866270abc5fc5e9b224d3b8c8ca78daf393b01df229b3. 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/USUYG1414751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd78ea140b4c618ac3457852b5c44712c10190bf3c9d4b080ae98fa953a6adc. 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/USUYG1431003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0742a3f6ee5d9ff114006d05093a1424dd8f4dd4d4cb3460e0f934754acc9613. 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/USUYG1430999.
GO BRAZY - WITH MUSTARD & BABY STONE GORILLAS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a0aaa0635c22d4a9b20a4fc0e0095082442e4ec1fe8e4d6eaabbb779bf658f. 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/QMRSZ2401194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda60f1b2748bd96b7e67c411ec53f13dd343276308c44cc83fb5a6550197c0b. 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/USUYG1413843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0dd1381aac4a24832f08e5dca7e02db13dff4d81601a5ac9c57247e038bfc20. 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/USUYG1415206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039ce447360c0b29670b4fc6634436e128ec9f265ed70e862eefe40e17f6a99c. 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/USUYG1414606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2a58afbd19c016b715729552b3bb03633c89bd56dfffecd3224e79a7aee8ef. 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/USUYG1414761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a00b89dee9d3ab7fdfd63e94a3b4bbdc7cd4ff9f0369a4adfc93e7ebcbd406. 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/USUYG1415209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf235c650a6828b3c729bdc4f36d198b78392ab5050c47167987f99bf89b65d. 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/USUYG1415210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad73b1d8276a00d134bca572d92f06aea67583056722766bf97368e8e12c223. 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/USUYG1415211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef80f69ab6baab9a68db36f5e1b5056a317bc7e4d0e2e09a30b403c29715d04. 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/USUYG1415212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b345cbde9e4407748f8e74ddecd48131b2ab89e7027e2d1a2bfb69dd3221dd. 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/USUYG1415213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99685e4c11cf14de1fc2bf449589173ad3ee86d81c4ea83eab6a20cd9c6db707. 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/USUYG1415214.