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 0x443658288cda4521b11b6a09e1db655e549ff7e4d3fb9bc0681aca91017f91d6. 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/eb83205c-3eca-49fe-92de-5174f8cdd7d9.json and https://artists.proofprofile.net/proofs/artist/eb83205c-3eca-49fe-92de-5174f8cdd7d9.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 0x8d7e9c21c96789b9f156c66ab527d50bd948119b0a7912cabc748461f5885817. 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/FR59R2556727.
MONTAGEM RENICHT CALAMITY, Vol. 2 - Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d0ecbb2fe2f7c3571754df292e49531d2c2e0bdecb9b5553c05bf55d4d02bb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR96X2542432.
MONTAGEM RENICHT CALAMITY, Vol. 2 - Super Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a76e4594f8ee12e191618c32a972d8cbe3b80dcb59f0e026db771e8d21d682. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR96X2542433.
MONTAGEM RENICHT CALAMITY, Vol. 2 - Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f79563f9315f9dcd513364dfae21df394e72c7dde01891bb679560b42ec9a38. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/FR96X2542434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23024ea1228e467a88fa24aadbe074e1a409123ca1432b6bccaae00d2b506767. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/FRX202544866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf178f5904bb604f6376cb57a145c3ef37739825d1972988724777d5d13f19da. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRX202544867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bd16818cf60d937064e78edf69e94171d0a4ea5582a850ba755743d53060e7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRX202544868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5ced6ca639ccdee7950c6cef92621008d79df431b86da0286fb609c2fe5311. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRX202583068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75af307696b21997627e79637d2eaef467faef4b2c8554c413fd53dd4cc81ea1. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/FRX202583069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3250853ab24c818c2ca17b55ee05821977904e7f74d7b3be0cf586675aedf6f0. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:51:35Z), 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/FRX202583070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a792fe9db4f303cb8b9cf20db026acc6c2e53f4c330cc2bc70a7f18e1b62e8b. 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/FRX202583071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e65050ef8022eb6f298bdaee91f39b18157fb9f5ed5270426edb5a74c5e3e1. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/FRX452587361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb486f17eecd613d4890384889a2ededd6239ac453e161d7c879756b85bc5fa95. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FRX452587362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4bd0456f479a04a6efb2cc2f30c9af5ce0f98aa81aaf7121ccbd7d7b4409be. 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/FRX452587363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406b63af56e48acba1db0a9e083d0fc61cc8424c1ede0236717f0c6fabc1b7fc. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:03:18Z), 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/DGA052504589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65088fae7eabc7c9df74142fa9ffc52443d86542149adf03df5ee62af155c8d1. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DGA052504101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448e9b7ab433a4935a21101645aad6ee0a4de57cd4a17f166b119370f5a79122. 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/DGA052580637.