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 0xe0aadc64fedbc1674b78a3f4ba9e398df1d032cf5e4dd72c9a2636195fa6d85e. 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/9e2027b1-c62a-4031-ab15-381d89d3b5b6.json and https://artists.proofprofile.net/proofs/artist/9e2027b1-c62a-4031-ab15-381d89d3b5b6.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 0xfad56eeebee1f767b138972d1219882e660821182c3c88903fd498ceb33d5010. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/NLHM70900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887895b6683303fdd9a21269df51524db8e6454be560827451ad8dd6af2244a5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:26:39Z), 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/NLHM70900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19cb46886ece962fe756092e71583651b361acab555469faa521287d1baf26f. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/NLHM70900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5472b6678d75912c578dbfcb4e45887ec7d6ab9fdb03b5f2d21b708a71c9183. 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/NLHM70900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9433d20f30c9c2ac74fdad054d77c514d3a879d61c19395b57420ced71431be. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/NLHM70900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20ec08dd89dd4558b8e70c5df424e184b9da052f4502b5d104d3cea1591979e. 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/NLHM70900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995a72bea4ca2f408bcb94ba395affb2a8fda04ee298a5735ed7fcc0105f6d2b. 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/NLHM70900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5a27801573f3905507ee9a72617654837c898e59e3759a6635e248b7ba2f46. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:55:52Z), 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/NLHM70900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20e5ff932b9e5a89d4945951ba0202840548c2ea807ab7db0e55ccd0251a298. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NLHM70900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c00fb656d3a548a0e762ed8566bf47c16165c490d50e28fc0d7f53f3d4d578e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLHM70900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9e56842386809a9a4a3ed35631a2660849054fbe1cbcb8457c61ea5f7a9372. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NLHM70900110.
De Sultans Van De Flamingo (Tangos Flamingos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff95229caf119368294775441434c0d79b7b29d20489789ef6065cff61711a8a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/NLHM70900111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86a09461ea0d944062f9b13720c870c71f7c8860787b7bfd93fadca65a65aa4. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLHM70900116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e096acaff44d809b5e9c10ebbb85db067222259124600d4c12272cad9c27f65. 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/NLHM70900160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe008802c4089778ddd7129b003be4c149fb8682211e26f40ef2dd222ef0c69f7. 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/NLHM70900161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe987e9a5e2d3f983451e99644cdbfc73a92a801f54e4175ecefb8e862aec5524. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:04:38Z), 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/NLHM70900166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ff58e96fb834ab919b1448ab42a40d042cb6914be28dd71d1fb9aea4551f1d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:02:32Z), 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/NLHM70900169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc1882a2cb5826ea9ba824701d44be2d6ad66da22257ece51ef107a1c9e35e4. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T03:00:06Z), 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/NLHM70900210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15acddde7485a9291df3a79c8f5ac110450c794faa72347f6bd73afd900a0496. 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/NLHM70900212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6247f7c0a7c2b7ce0eb6ef40682e11d7632b9e3d2fda8460b416771f8e05b1. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:25:38Z), 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/NLHM70900213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607d28a7b8a7060b22b6227c97a5da0de97f28ba94e6fe9353f7724d65eac004. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/NLHM70900216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce52165cc8328be50125689d5bbbe3cd759e5c1238a4d32da858dfb122d832cc. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/NLHM70900131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38e8445a0036b1fe276b9118ed4f72b87a6ecbcc5f11756f5cd36d30f430527. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/NLHM70900134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94fa5e004cb64068717472b1f57ddcc502e23c634ff097c208673c716329b6e. 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/NLHM70900135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb6e49d14a6b5800ead22b54b517960d7c36b91071372cfff5e54663a8baa9d. 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/NLHM70900137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa486e956351039b17e90f8d0d47412c65ac2f2c423feb6eedf3888ce12c29ad3. 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/NLHM70900140.