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 0x69a8f8c7dc945c6d7ac804cc4084a5d4d533f5bbcacb99899699b76e52694fb3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10964128-d599-4fea-988c-154ece3c94a5.json and https://artists.proofprofile.net/proofs/artist/10964128-d599-4fea-988c-154ece3c94a5.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 0x553d7b4c76a9ee8f04fa20f5c111108a5f9065efec50261b05e5c57eea11170f. 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/BXY8J2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6e588907f6227379ed9aa55586d15a6047b2e75cd45644b8e929d73f97d5dd. 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/BXY8J2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3de1fcbff1c1f67c61326370fbb216ddfac3199d5c2388e2c10814283c8e6f0. 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/BXY8J2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439ae7049abdbf3b7c80bd9b18d38b8a75defe098c6ca872683d1fc9e1b567fa. 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/BXY8J2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1f8812567772a270bce1a6299efc1e889d8c87131aef25d86743178f3f31a1. 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/BXY8J2100001.
Pumapjl & Febre90S no Estúdio Showlivre (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5cd85417a4dabe899fe5c25b9422d648863d4349e27b9ff33372e31b6d7a5c. 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/BXSSW2200307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908560326c340df05b95b12e0b0b5ea17eb35b644fef7af836ad2ee8460a871e. 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/BXSSW2200308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c1722c9463b77e17264cf83c89c49a6b44e76d507701aa2487e98b1964b67a. 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/BXSSW2200309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3d5a66534a6edc7b11535e03a8c461d5e19ea6d310d0ed0aa503cafecfe27e. 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/BXSSW2200310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f64748bc1c62cad435015c856fdb0f88e457faf777b698227eadef9f1f97e7f. 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/BXSSW2200311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbb4d80c58e16865bbd6097d5fc9675cd6c1135f59ffd44ef30cf3f2e47459f. 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/BXSSW2200312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ded9ca83d4d4d10859cca051494978701b0ba45aa36633e336df2a5e593ce5. 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/BXSSW2200313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5278d2b7b3a5a2da95d5eaa748bce6ebbf085377cdd4a427c84fb71272c2ee. 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/BXSSW2200314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81aa95e4fe539ca5f16c2dd80ec076b28a0a68d40cfbc9f7dfa6f83793633e6a. 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/BXY8J2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725c8bed4649e539353c89069bab31e74f39631b87253c9bd05b7632d5a62c1e. 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/BXY8J2500001.