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 0xf83143e43d2226c6978dfe0fde6f6cb098beedc5c84156226fd7f2277b42fdd1. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bffd48c9-619f-4f67-a74c-2587ee527597.json and https://artists.proofprofile.net/proofs/artist/bffd48c9-619f-4f67-a74c-2587ee527597.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
King Salami And The Cumberland Three no Estúdio Showlivre (Ao Vivo)
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 0x231d2f4734814048a3a912e6a62a4363d8398a796d45a382a6b4d52850be1cfb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBGLR1900104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a9c3d0db51e592a71c291ec0db9e6b90f4d3523f7bc323176fc253f9e4ec2d. 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/GBGLR1900109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4815fb8a45a27d6e212630211d0252d52d5f98bbd90b88109054aa41cf32028. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/GBGLR1900100.
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 0x71473af3ee0a54d714e868769e84d553aab1fc47aca786a39f79d724caa9cd21. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/GBGLR1900102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd699ed7206aa213e5cd4b2b4c6b9bb6a2c94cb65d23414a83d72b6e4f03ef9. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/GBGLR1900110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cfbfdadcf8a6970a40c8d28028196828e8b8bf282f1bc029ec733b36b0c98cb. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBXCJ1600036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bb46388adbfc0153cfffdc503eb842f2adc60ffb469695fc331b1358bda6bd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBXCJ1600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fc2f8b2649ea83567f368dd621a82e04cb431642adfd75a75f70764ad89aa7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBXCJ1600046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff039efeb867c1cd035210068582265f2902ed20325e13eb4fb73dcc43132ec2. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBXCJ1600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2fd67d9f411785fb6fafc29635c461a1bc428da523bb8e6039e33c75ef4ec3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBHLW1310407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dffda4b9964d7aee31686beb7733ff80d085fea45a1af9185e124b0c0d926a1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBHLW1310405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f0bd8a0cac2c97389442015a8a44a3edf0f7ba47addd01c6a57b728af6eb21. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GBHLW1310415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f9c76c96eab7add23c539ef03306233b7fc7be41e07bb49cb8823a110ad656. 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/DEEG31000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e33acc39f972bcdafd7ef7cd9a26b3155726de200c150b309e4fd2ed0356ff9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEEG31000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659ea0fdb945c80eedea1be13d0ed8739ab149e8d1e0c455183749df5991c829. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEEG31000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92204fdf803cbe0659af8a4bd21ec354f4222ac77ac7009b6300a121da43b9e9. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DEEG31000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4e55a3a251d190f1155e0673e079e3f83f13dc0bde9484994adf49f4cea0e5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEEG31000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6fed75ff979e3f9c89397730d17d013e4602879b07bd75803ef6185701b10c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ESA031708303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7735541446945db50646a46228eb85661726aa002ea3caa19ba2916e7f6e78. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ESA031708304.
André Williams & the Goldstars / King Salami and the Cumberland Three