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 0x1bcc415cf04299513e3f7cadc4abeddf15803eebe75c7755dde01b302c67f67e. 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/cb5c350b-963c-4281-9c06-90558e10667c.json and https://artists.proofprofile.net/proofs/artist/cb5c350b-963c-4281-9c06-90558e10667c.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 0xad02b7742243b255ada4a3599f724d90118d7fa7f8eb1aa2ba1aa8f9d6ae616c. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:19:24Z), 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/QM3DF2186869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e363e9fa52130757919403ce31464237e5f0b1ac311c95fb6fa577caa764ae. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE62M2122389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b67239bc8685afd1577202bc5d8ea9975e015c4c81d950cd46a7743b3a42fe. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:41:27Z), 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/US3DF2239686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae9287c61f0ea631b6e15ca89ebf8312b1b869241542cfbc15ed3c0987f1f04. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/US3DF2288926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730e38319aa5add606aab1fa2e6b5644ae85b9b683ced8177b3a05c984db124c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USANG2211745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3659c481d2339ea1ccf4afc4db872a731b3b68aa07fa3f673c4487f4bafcb5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USANG2252788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf9bd96cd2c91b4c5f2d7032fc1ac0e387e5246966f5844f481057ac506e8ff. 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/SE5752225558.
Do You Feel Blessed? (Out My Body, Pt. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d340bb1503739f2fcc51cbf20926d1835a7265ac27a0d7a85aee8489367f9b. 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/USANG2270882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c07de148242ba4e1f1d95a82c6ab84bab7d6b02d372333939c89f99d501cfb. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:50:57Z), 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/USANG2286482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63ccc20b8aafdf851b7853a154162d558bad6ef3c6a27bbbce95da79e19eba4. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QM3DF2246494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92e470b9f2f7c7967b9d6f1a426af952ae728743a5b0634aa3b9b719be554d5. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USANG2270800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed80c7332bbb05542367a597351d671672d1dbe4daba9c10bc97bd573ec58d85. 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/QM3DF2246499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3d3f2c73f8b844a9e43631bf94dc0baac6cca039eadbac8145c1a8d4e23f79. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:32:50Z), 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/QM3DF2246497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3b702345cea82ebd5a4f113db957fe81ffecb7b6fe3bf26ed332912a4131f5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QM3DF2246490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61e010a210fcb4478b22e6850936781dede93718b4037b36ca27e24d75f61a8. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM3DF2293127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc35e9db85a627632f5e5edb9c45972635360da9d86b6c4f5297e5e35f2f014. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTB22365936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3614eafbef30503f06ac67bc487180003963c9366133966774eb3d054b5cf724. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:18:41Z), 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/QZTBB2318858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c0b70be24d4dc9592c62929a1650865f8770a5e5ead03739e30ecbce037832. 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/QZTBE2351904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb93c3d2f969b2088e3ddb672ab294fc2c777569f681915fa7fd5cc21da6371. 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/QZWFJ2313559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305b28f4deb44ee14215e21aa8928c6c57d94df5a5b4f604cb0d44f3a2a25688. 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/QZWFH2337393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336b68405048e5fd27f5653cb1cce78fb07d2aeb9a7661b5e27404113b076867. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZWFJ2313560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471bacf3183feceec862dd2cd81e405d43323d47249f9361dd9d5891fa293620. 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/QZWFJ2313561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c8ae2ddb3c4de3a557838fe9f02e4558875df430777850c54069becbe07b81. 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/QZWFJ2313562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8813d670f9394303e67c91ec9472482fe277fc933bd9807f5b66027bb26982a5. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZWFJ2313563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766ddfb8e60052fe5548f23c99cd77b06f26db5bf4f20eaa99cb4ddd6f882ab6. 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/QZWFH2337399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178dcdc2420ae87b7e957f08d06dbb7960344d55772dcd9e4b18a6342146f208. 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/QZWFH2337400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff94a9c36f17426f3a7cffc15fa6cf5391e33324dcea0cb6873fb19dd5e44ed. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZFYX2452551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203ffb7aac55c2e42d72c72b3335bc581cfed2ae85a473d8ce398da771f2deb9. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZFZ62433254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee39b7d8f03454ff280703cf4935b837942ec32392ec94c173e8fddd952d6efc. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZES82495600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230dff553ab4589a662361675da523c880f116ba786438b4153f11df9ad6c375. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZK6N2412702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52d4086b0fb6a69cd57e1dda318bd78ad57411af1483d20ec46e6138a9f3b72. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZMEM2426140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ffb1a49938b96fec7136511c1b2a206b407f9f20b1d95c15f3df4cceba7311. 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/TLREW2221098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddc4d68039aef2bf1d9162459ff1cc23722a0be69c28ce4776e9aa5888eddee. 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/QZSYP2497429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8afec68ebdd0d71905fa92de780994eb0859690d02772b690f3d812d9610ac6d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZNWT2266790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed9b64ae952afd549e33ec4c17aca1b0eed030b00113c0ea6f0f2d2902a60a6. 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/QZTAU2483554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61739f01e84235d37b46e0a8b30d3d547a4da451330318ef5765b2a24674d36d. 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/UKEX32500307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e8447698ad1a21d36f936569ddedba2053b33c1b95943a983cd202cd269f54. 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/SE6HN2347594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5adf47ecb385c445c14c34396657edbe6e4fd04f08cdd422cd54bf4ecd5a44c1. 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/QM24S2401109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834aa29115584dd75e6a9baa583371625f0c7a7f880686ec0ba853fb66398956. 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/UKZGC2501710.