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 0x280b84aed2405eb783d6c51972e5a4f42f1b630b9c6b6070939c408cf34c6c1f. 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/ce40a5ea-39ea-4031-a243-c2eda1d5d3cf.json and https://artists.proofprofile.net/proofs/artist/ce40a5ea-39ea-4031-a243-c2eda1d5d3cf.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 0x4a8d97d537b2f3c0222286ff0a4841b939e58539f0af9a53e78d1461abafa4b7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USCGJ1876285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c52ac924cb99a9c2e53668f0ddee98d3a2b247cb4bb1b75979147b7c2c20fab. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USCGJ1876286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72aa682d479ac14d8dc070478d71a21b744d8336ac7fe30673031ebb1e15762. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USCGJ1876291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc592bf50dbe64daa86698a9918f66f06b748b318c32b100af62b7a012eff7be. 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/USCGJ1876293.
If You Ain't Happy Now (You Never Will Be)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0efeca1c5aaac86d209a1a13316d9b6c56c2124192204f6c4dee565a54c0f2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USHM91934475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85819dd7b3f32dc4e4b2dc3f395afb843768d2749e8bbb9cd61673f2d408ee35. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:00:18Z), 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/USHM91934478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee8d345272ecb6b41b28e6220912aa70dbd440bc2be3e28a0183dd834353861. 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/USHM91934479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592b2d24135c7648382fa6a7b6ba4e66281915ace04e3bd014c98c94f3a18746. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USHM91934482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c74fa2d43d706f7c13708207ab8a440795a2fe9edf935a417feb1ba723002c. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USHM91934481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea8d565f851dd5e5d6b571f7fc7b4c62ed1316977565410abc93c98fba12123. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USHM91934483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d7599e039d6ed554a81681845cdff9f6f37c8ddc746995a9700cd823a01fc2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USHM91934484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e88e163dd7360b9f07b6c350f1e1450675f9075a9c731bbe8b15c1d723f97f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM4TX2175573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ed1db5a8f135dc0c9f8561dffed903147b922fad3de68ac591aab544431446. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QM4TX2175574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa468de45c88a11210e5aa57d6ac317a46bec50c0ddb605c41c4af5502b78823b. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QM4TX2175578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6882c7d51a43f0850aed494704be5c7cca43038b294ba9e24318c2ac19d4451e. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QM4TX2175577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263457125e2666fdf492c47df8bf2ffd1cd75da3ba002a2cd03f511d784ba909. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:38:57Z), 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/QM4TX2175576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25dc47e7c9c6ee5988f5a45921d0373a70a55b1e594f08954f9432218cf3d8c0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QM4TX2175579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2750662ae5debf0100d2d97072d09339bf42a43b10547b712e2ca462a6423ce5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM4TX2175580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe209091a2bb1b804239ccbe55b576ea8d1ff5045f13d1f6a2a87d4c1e9b39d91. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:54:54Z), 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/QM4TX2175581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb242401cb7caa84ad97e07260bb7f791e01b5a6046a317a93c0cd2d9a4cc013. 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/QM4TX2175582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d7d71b71a6a7e9eb32eba8545af48cf6617cbc989c3f36a9069fbddda0a23d. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/QM4TW2221816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48efc2c57f40ee440d09297c25d4125a6ffc678db7b708559092624709cc3fb7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USHM82251728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf1d75bfdffbe4c4da6cfa069750f326f2dfdbb70c6b486ce381eb4ab5d4a9e. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/USLN62404601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763112205f958c436d3f3ac4c580e643bb5015631098864300d32f5782a0c8cd. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:19:58Z), 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/USLN62404602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8df77c2c589db0cb81453d78732ab156f9e2aaa51f152bbbfd40920f450d828. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/USLN62404609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6a42d596a5a7dda78ad6d6aaa879400348b5214a312ec643e6ca5e86133574. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USLN62404610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3018d421f39e3faa57c8e17e1b0c5a42aa4d32f186d0bad24e5693d0c4c4056. 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/USLN62405931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2b5d5c03b73385d8ade1aa71d36a4cf624c1ad243416a31ec140ee10c4f97c. 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/USLN62405932.
Time Well Spent For A Man (feat. Charles Wesley Godwin)