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 0x7f42098997806229847d86eb5fcc74c585463b637f8e198ca7a8d1571c4c2237. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8249e103-60f1-46c3-9351-f9ffb7e2d54b.json and https://artists.proofprofile.net/proofs/artist/8249e103-60f1-46c3-9351-f9ffb7e2d54b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Burn On The Bayou: A Heavy Underground Tribute To Creedence Clearwater Revival
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 0xf8c01e19cc14bec9dce0071911bfea8f464446450847dec886ee6ebda8d86699. 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/USY252318777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1854af5599eaafaa4a440f383376c54423f52465628ff8d562fc379086d82f9. 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/USY252318778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f1fd10d31b41c85a5f0f12165917e2e738a9afd23bc1cfd511c2a8937435ea. 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/USY252318779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc165a0d4b1716c9da74d40f1ce3a976b29755e4f9358dfb08c3d0748605ad57d. 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/USY252318781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf0e32cb40fd1afae488f9c2d055bbcf2a4e15fcfc0766d21e811b0b0131d27. 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/USY252318783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474e7e2e232e405cd909ab4c52c31b28994cd42e575dd59b4532e4d4bd9948cd. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USY252318784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c4709d40ebbf5f8a6233d282675df80245d228a489e44bc430af80e07d0ac8. 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/USY252318816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2ebb480531482dfd80a5ed7834b6dd7262f24b041000dec03da4d18836e15e. 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/USY252318793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1f5b39aa67f0a8a97d79855763c62ceefb105b9dff1c4c34950d8bf1469183. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USY252405925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e6c85df994b9fb444011244dc0426cbff2f7f0a32073751e33e96a50446409. 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/USY252405930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37b64e4d70bc8df6b12b1cca99e46b3e5c54140be30637ce8e8085d05fd9e45. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/USY252303362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f0418c1ba4351103dd22ec5b0206b31c99add1f0f5de5433104eda07d9f2d8. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USY252303363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f89af4054a2a71d0d7eec8f698001b1f1c4f62138a77bfa57b152cac7c1324c. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USY252303364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da0dd992547ea50cd14b88efa3ef8dde13d9c8520824fb19ebbb867e5336841. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USY252303365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5c46c410add59d472a35362cc00a12cb4cca478840999220b175e0caa0cf62. 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/USY252303366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03147e7835691a8208f7f686ac2390a2d73a407454f52e4ac8be058198ef2cf0. 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/USY252303367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c70670266efe4feab5f2a6d24702d39223dfc324c80c1af74bcf958ff858482. 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/USY252303368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75987a21e010f9adbf1e98abb43ec80f42c3b8c1b3bbbdbacaf3e9991f0d94f1. 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/USY252303369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7440d15e2b29a434337835f0306729525c881b2773327b8844e9174ba16d0f3e. 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/USY252039801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca22626de23881f3346b7e25a6d171c6f3a1d4ac8b897a47e89f7d342511afd. 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/USY252039802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f7c429d0dcf8cebdf772897c255a7693ff7bffdc2dcf8fb87e4adcbf5ffb65. 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/USY252039803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767c161fe830c33981154f7cc93a12b7a4e5bb98c44533a320d1fa831389dced. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USY252039804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ede17506857f7160aedb676036e2ebe375673201076d474d8d0eb32e9cfcb8. 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/USY252039805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa781c0a1fcdd074f69d117e59fdc7503e27f5c5c542fd80be5cbca4f9c67799e. 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/USY252039806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5cb0aa12549f752924f1f1a6309f93a31873aa9af9e2a527c6e3de615ee664. 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/USY252039807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10bf1eda3e92caa1e1f0efcbd302e716a48f630818bf6ce9a6813c0d77b055d. 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/USY252039808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78be4de524ba74be317bd0fb5c4d1298b4cbe71067c0df663ff6f8b3f809ebd3. 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/USY252039810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049214c602b16abb1b19212af8187fa6947c619862547356472c130d3f78a8ca. 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/USY252039811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448c50894001641741dae2a876d055ee3284838ba62b368d725537c9469de59e. 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/QZFZ22270106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5811aaa369d6f599580323228d40664d072362abaf2649ae7d3c462a5fe2a34. 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/QZFZ22270107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c46801ed76abf70b1605f7947394e7f60ff965ae042a3f7da473adf99a4c6f2. 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/QZFZ22270108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa236eb68f17e34c9572cee7bb6d09d5b21a5989d749732efb23910584f301db6. 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/QZFZ22270110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad2db1bf6ec167fccd34734c92eeddbb05abcad7a8273aa617b92a4070d14be. 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/QZFZ22270111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c70670266efe4feab5f2a6d24702d39223dfc324c80c1af74bcf958ff858482. 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/USY252303368.