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 0x3bf72ebff1e1d5a69e40b227b4ca62ed20daa1a76a3daf43fbd9d78f1aaccf87. 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/cc411174-74e2-4492-b799-a954efb140e2.json and https://artists.proofprofile.net/proofs/artist/cc411174-74e2-4492-b799-a954efb140e2.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 0x8983c4c7847ad7d27d3522d4e08315a4e9713ec68d5dafdf2967e9f20f05d3f2. 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/GBKQU2020160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b63d33b5f92389d00e949e8d40806797ea7407635c4f1da6049e60926e516f. 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/GBKQU2329636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0344ea2e2c16adb2f9dece474ba18d93c331ca646a10ac0fca8a4e1f87233f6. 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/GBKQU2329637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa0f4939ed070a7c2d2ee5d466104234c48178fd9474954fa1a1d3d7fa8cdb5. 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/GBKQU2329638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890ac9d83e6b913189bc71b45df53e33b219bd99cc5db86bb2cc7f24e37f20a4. 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/GBLV62211425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9949e792a575a8a0262fb322d0a62c0bde46e861f1d2c875f93d4a8a6f6d88b. 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/GBLV62211426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22662b8bad48399c15c61b82cfe322fbdee6b0f7916ac45dd5f7f4ca65b8bd6. 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/CH3132217074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6faadd6a5261e7cb5dcf67c9f1cc94c8a15c73e3aa4d9c149d71aa995d14ae6. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:52:18Z), 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/US83Z2223796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5eb5f656d0053b1225a18b38501f884b5c8fbd9ae12720e222a3cd71ffdc8fd. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:43:06Z), 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/US83Z2223798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd43b3c2fe64d3c358146f45816949c7cf8bca6e718d2a7bbf8ff70cae2777d6. 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/GBLV62123733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f6246028b9afa23aa9f001bb9e46a5d0d36249c86d291ff3a5df99dcdfca0c. 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/GBLV62123734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6b2ec3901b6275d24248cc481b531f14451c8349f7434c76f6eb916a909dc6. 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/GBLV62123735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f77993d7faecc06497aa0774c22691b1d2837932f31484506acfb5f8fafd59f. 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/GBLV62123736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d4635e3ae9c8dd344fc2e20adb24c4d151b642a3658d4beb1ea7cc9ea585b2. 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/UKSP42000167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf672b733e57f8294031e1b20e16e529105742e8b30c4bcbc2685292a8d5f85d0. 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/GBLV62029043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2caa20f0f76951a6a1bba93ca992687d0931ace1b079e8240c5f650c014f9a. 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/GBLV62029044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0523af4a3ef46cfe07f5dabfb1c9908fcf1faa424ce7a2208828e69a68ce0b39. 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/CA6D22000442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00639636cc0d72738e1cac8edd8c3a16fdc18ccb41e082d0fd3ee3af91b6dfd. 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/CA6D22000443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29233dbf77856c49ef3f82f29f8c93f64233f3728af9d65d4fae0903d6e8c9f1. 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/CA6D22000444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bc0e939057f7e42c1f4ea300cb9e7f8a44f2e838fcb59da3319461cd6a9199. 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/CA6D22000441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278d28040f2094d09215b5451da839970487ea8af2ed72c2148892f12384b43e. 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/GBLV62019051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a9cb490e7df727bcf01e39cac90207a8a81717825a4ca3c6c5db99cf87eafa. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/US83Z2006856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13059ba8deb7128f99c05675f28223ac8ccc452fc1c4b2d93adc75c1f87917fe. 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/US83Z1935261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043246b98204a538de864dbacc7241d71a166c6b2edc94495040fa0fdec988a7. 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/US83Z1935259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1bfde70666ff4db7e40a7c7c1081bbb78324df1fa3161fe771c13f8f40f5d0. 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/US83Z1925272.
Colorscapes Volume Three - Mixed by PRAANA, Matt Fax & Dezza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa538b1ae86ae69e8f7f6e99299e8aeb00a6c060df2dd7fbc930c36539bd576ba. 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/GBKQU2194009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1509c99901576b80eef263089cbb2aa277a96b0c78d41cd6f158aa5aa88ada1. 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/GBKQU2095307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf88dfc415c5757153499496b992dcf025019affde2a5b627792271177d3d043. 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/GBKQU2095317.