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 0x533f08bfe145bbec96f8b69433c0fb100b432737e0d4e12c6fc619e0677db572. 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/69841729-961b-4cc1-acfb-8f0b493a6111.json and https://artists.proofprofile.net/proofs/artist/69841729-961b-4cc1-acfb-8f0b493a6111.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 0x9177a33a2dee2a1162db23b735f5aecbd8d719cc6a250eb113b4a87c35fec3a5. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USHM20722937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd53545b7ec43bb3531d500f5ef2b63525acbd0d036723012ab6978642878d91. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/USHM90430520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619f336650c990943db1195dc193905913865972c0e1214edfb5a8976e3c7537. Chain 2 (Bitcoin): anchored in block 957540 (2026-07-11T08:19:50Z), 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/USHM90430521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8bc980ffc21cb4ecd32a43579e7ecff80dc6de57206cc01ba7a82a589b2bcc. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/USHM90430522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d6d315bc4d3337f51f49187514e6f8a5c0e842c464462b2a392c458b1d2a24. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/USHM90430523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60793462bd24005b7c98e162f2df7e6995620434134742138835f562043ea9ff. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:45:49Z), 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/USHM90430524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5f18d5aa470576330f70c46974fc34662055f36102c4016ff417ca9082e7d2. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/USHM90430525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914d906edec06ba9ec968ff6aad894b0f59f12e6469c8e9eaab24979750a4ce6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USHM90430526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613a399634c5e2051622552105c6b95efaac692aca14c6e2ac4d1be171c60ee1. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:01:59Z), 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/USHM90430527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be4093d51e98c3aa186d67982bc248571ede9e21f6f1801f48102894f9c0a72. 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/USHM90430528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30366344a8b33383d2b94f552a3febdea51cfc9c3cc5b396c84cd89003a8dcc4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USHM90430529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed7b1e65b2688aa6fbb5fff3ed4a7a3d0f44efd58d77ec6ced405e2ba9b3ba0. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:03:55Z), 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/USHM90430530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bbff9395f18d12d36c930de5466b1f4b483bf7c254dd6aae92875b66975658. 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/USHM90430531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbbf68891f5e947d94f625eede6d0ba8540600f025748b2370e1a67e7771451. Chain 2 (Bitcoin): anchored in block 957539 (2026-07-11T08:09:42Z), 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/USHM90430534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473148d298703d46c6f9da559eb34fe72499f5adabb692dacd6fc06942e188d8. Chain 2 (Bitcoin): anchored in block 957540 (2026-07-11T08:19:50Z), 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/USHM90430535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc5c604ca62a2da4cc99382e1b613993802ed0de59469cb67da11bab2c8afa8. Chain 2 (Bitcoin): anchored in block 957539 (2026-07-11T08:09:42Z), 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/USHM90430536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ac1db1961c7998bd81a172a10f430d8bce225a2c79a55664724b03aea68e7c. Chain 2 (Bitcoin): anchored in block 957540 (2026-07-11T08:19:50Z), 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/USHM90430537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8e3adcb7a1e62c36b0fca4d18197888df5992db5579dc085c03c5b8c1fd004. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USHM90430538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb780d2b23270cd3aba07d1ac5626948cc49b49054a07be960a82891dab829ef4. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/USHM90430539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1df4a8d2f3993ebdfe7019666c0a4eac9fc4239666ab7df54cca84baca1721. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USHM90430540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc185fd629b9a034f2027017c88099a80c8e94ee633a3df24738686389baf5039. 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/USHM90430541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a813d46d90750f64be0b12d07c2d376d9c1f28b73cffb082bd365ec2a7643a7. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USHM90430542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a9aea54aec28a38c0fd4c384567309be973f54261acb5a784684a00fb3fb8b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:41:36Z), 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/USHM90430543.
Prayer Of St. Francis - Feat. With Matt Maher
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543d6c95f9aed61d620ec5f4b8ef2aea1b142c23e0f7d3376fd49154a86ec17f. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/USHM80663784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7cdf0a90123b6160762c41d0b09f8cfb3aee140c3c418b5cdeba8be98a1e38. 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/QMMRT1200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07e99074e0e3296e7aed743e09c5f7aa842e1ae43a3445b84ad8aeb0cbc7d2d. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QMMRT1200006.
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