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 0x18d1a3ddbd98df67e9a46d4c766bdba35c2d0a524a4e25ade3008976649e412d. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a419a559-b0c0-4741-ace8-eb2c48beadd6.json and https://artists.proofprofile.net/proofs/artist/a419a559-b0c0-4741-ace8-eb2c48beadd6.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 0xc6607c624743a4c15ce2ac1d20808fcc0217c569bf583cf92286a95754114d1d. 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/QZDA42437531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d67170b5fbe60128432eefccf78bbbdf19e5838aea2470a912a80d98d3d1035. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZDA42437535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57323ffabc0b42575292f87043a44687ed2034a6c7a9e7bfe770c0e2973d691a. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/QZFYZ2430513.
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 0x5cf72b303dbacee8037e51259bd93e03e866da9c1e75aa3806647fc6aab0ddfd. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZDA42437533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ce081e41f2403c388169bc7c72bc4168a50eae9db3f5498f579dae1bf5ef63. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZDA42437534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d54d4f04410d75839f0c9cfd24701a2f0f45ddace935f15239e4a1c0cf7ddc9. 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/QZDA52324680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5631a65cad9f91b0b5ea2ab7bc413a67ba1112c3d6f4bb550515cf68f4919e93. 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/QZDA52324682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8567fcb8283c0a23f7d08d6b3fdd46c17a3279dcea187b0a1751a3ea5bc185cb. 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/QZDA52324684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078084b68ffea54591e9c7f04e676c03c90c6ca3220b4ee2fb88fd323981b806. 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/QZDA52324687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97c82fc6e4c6543df6ba620920a8bdc03662239ee44db247f9bc405a034910c. 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/QZDA52324688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498bbe1b21eb9afb8e19a58ffba917dc846cde5e8cb56968288b640434f3aa6f. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZDA52324681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d977b6994fcc49090e26c4cf205f7d6c7af3597f7e80823943a543e40bc0d71. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZDA52324683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55520a86860e8e293e75c5701e5b03b01213931851fce1d067e5208cc142860e. 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/QZDA52324686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4323b4d1d20f4afd33425c314a8d65e4dc9576e648fb2fd299a7c26a3db499a. 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/QZES62258712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e36c8d601aff0cb07930e28c2a7fc678266fe575c5ae0b434c63686da68793. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QZES62258706.
Prophetionally Speaking: Contending for the Faith (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ab75210d93583fdaa06e0373981c562a068017f4b825c13ea01e2ca92957e7. 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/QZES61977824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f551823a0b0d0b3176b92d3d3883bad49edc17a5093c51d7b3892963309cbef. 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/QZES61977831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab8b63f31ab76e260119a37819d0001353cddf001f53a28eb9aab32c780c296. 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/QZES61977835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd334f316c2eb65e9d9704328e442c6e6bbc94ad423d8c1844dd0f57665b93a. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:28:17Z), 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/QZES61977821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c4180007e94d02bd4360ae5e23439aa12ba591d625f1f681eba1c3173af70f. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZES61977822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217bf3fe0a3ec9c8aab4755ae0b4e37f9023e051005abf2b6541424777fb33bd. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZES61977820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf302db6b7bac8a9cb7e31313f5f731291a9b5bc679a0c02efbcd312a06111a03. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QZES61977823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f1e11ec414376cd5368f1ba9e3fbe3118f17ee2a60989f5fd20e0e5bc189d6. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZES61977825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c3531d01f1ea5bf6869e7163f072b91024c2957f90fb32dc19b85c508356f6. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QZES61977827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38bce99a0478d466b9a431726ac72bc8f4d0ab9ea4c95195fe9786c0af63ba12. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZES61977828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6830c36cee1da281926910321013454aa69ea4287e115adc5fcc6bbeb907efa4. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QZES61977830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7408b15c3dedf1f5af04760a8371c90c7a0dbfdd5d961b9081faff412a232c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZES61977836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2b33446b6d5d34b41db9cbaa48b6a2cbf8f05277bd1a47cf27c66be77086c8. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QZWFQ2374300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36a833a30a15d8de6d4f8a8c6aea002678eda4f672160cfbd4fe23b63e76dd9. 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/QZMEN2335829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc837b7e6a4323c748bc727248a4df0e78d313f659a77c3b0b93b704a17b12dab. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZMEN2335827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b848912cbf4fca7512ea30d3e072c7c2b5de3d2c25cc4150141ac1efd1dfb9. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZMEN2335828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ee443bb870c8ee0eff3cf59c91b4f31a4bc09f0cad5ea0c4710cd6c1d70513. 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/QZHNB2154591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a5f03931666cadd2043f32132e373d4a68a07ec5fe0a6897b056f48215663f. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZHNB2154593.