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 0xc5deaaa8f872d4bb95e01a0fc528554c52d3999d69b9355deb6d71f1c1774882. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/229234e3-320a-4e9f-bd9a-0924af676b0c.json and https://artists.proofprofile.net/proofs/artist/229234e3-320a-4e9f-bd9a-0924af676b0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
What You Want (feat. Hansie & Badboygoodvibes)
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 0x63630bbbb9ab20b1a4616d233d783f93707767f038c1a1bf308c982fc161a723. 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/QZK6H2392402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71cd118ab2d49cfa402bd3b63248436c0501e79e2f1ae8ce9a9f9d352eb7abf. 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/TCAHG2350742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe449cc550efa30f6f525def346843fa6de59842d1a25cc02a094bbb89af63faa. 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/QZES82381917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88074761dcc56b67c09726284c3298372ab5f03967ea07c3e741203d8f40b72. 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/TCAHG2350783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b2cdb483eb5b8c7d6c9610fa404c0a72889bdd1f53b757b7ab8c875560e897. 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/QZRP42216101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1118aa0af947c4037b529153832a3c562027084c3e080a4b126280a629a2696. 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/TCAHG2350827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841738b1e9ffed669f9a84c8a43edcf0e23e7a08099af0dc23492495411433a7. 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/TCAHG2350882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff395c615b926442bfefd41a6549a260f2d259cbff90db0bef8e6ff6f7ead3f. 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/QZNWT2182447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324f0544795ce7fc0a7cf6b80c9c79b9c76dbfe87bea30ff107ff5a320566eca. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZK6Q2149865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab69da57fe6a0227d8d2699a19afa9c88162d24bb865186fcf52d5c6e1ad0e6. 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/QZPLR2188864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9642cb1da15f3caa378e1d503375a3ac609aa35187a285b040af8c5854720080. 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/QZPLR2188865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55ddb69a316067fdfe2d72ea42918716238d374521976d97f6bfb977a2e783a. 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/QZK6F2135089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7a040b5e1c4e47cf51105caaf2abca3775ff3275dd457148a82df3c0238772. 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/QZES62501172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa01fb0e832d6620c961e0848b444ef06ad292e8760ef396a4312a7f23627e46. 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/QZFZ62574490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fd87b0a3bcad2bb44038e0a65284326bc8d1c7ccfd7c7a8a9f7bdcdf93303b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCAJD2453962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae00dd0c2083341c4dbc09071457e79484680f9fb10fc640cfeb3bc3e3af17c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZZ7V2498547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017face8fce576e1b7ee4d5d6d3e5aae9aa7611a4a9fe77cd781e01f06a54cec. 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/QZWFL2412589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fb020216762664f8ad55174604467001de9ea2714e8f03fc6cbef61d85b920. 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/QZTB92492179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc51a5dcd8faee24c9f73280b858581261a1b5c5393df1314e344f97d9a31549. 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/QM6P42459023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fd2cf56d434feac4fd55488188abfb792d38cb3bc0afbc9416a3b34172f93d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZFZ72432901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f74604721031dbd182cf39bd301b799cc9769194288b062b099644afb943c3. 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/QMFMF2378432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448928a0407771ea68fd6bdf73dd59ee922e6f7f3dbb17f9dbed70c3ff9da99e. 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/QZTBA2377609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ca98bef18cc7d955a7c9c174b50559b4d96f65cb8edd1ac0d29369bb2b141e. 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/NLRD52222558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63630bbbb9ab20b1a4616d233d783f93707767f038c1a1bf308c982fc161a723. 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/QZK6H2392402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe449cc550efa30f6f525def346843fa6de59842d1a25cc02a094bbb89af63faa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZES82381917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209d0dc1753b21195037d5361c9039b39daaedd839b93caf4fdd6a8222fda890. 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/NL5MF2101360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974f3db722698342982cd8147a57db765363b5c8bc6bb4921066d64a1a8e1764. 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/QZTB52223984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b2cdb483eb5b8c7d6c9610fa404c0a72889bdd1f53b757b7ab8c875560e897. 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/QZRP42216101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbc09e91ee5eed8ea673a5cc1d4cc22dc952dacbe7cb7b18ef144f420597b62. 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/QZNWU2222967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37028697ecc652d7df0b6477bb4084402b1f89dae5f3a9507df07e0439d85ae7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SE6SA2277675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55ddb69a316067fdfe2d72ea42918716238d374521976d97f6bfb977a2e783a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZK6F2135089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324f0544795ce7fc0a7cf6b80c9c79b9c76dbfe87bea30ff107ff5a320566eca. 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/QZK6Q2149865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9cab0969658d4bdb407d046d259da45fcbc8b1bc49f3ae91ed7b6d219061f5. 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/QZHN62119607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf1ef11782d0c481d61cc99669ff54fcadc1beff9937850ed55c289ebe4c021. 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/QZES62155871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa17dfa3b32b1360a7547af7ddbb3fae172233e5788338fddb6fb05f99a3d3b. 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/QZFZ32145149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc840a5aa9b422c813d11e78feb4b5092b3e3745216e25c5e35b3b26a2d66e835. 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/QZNWT2097913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afbef66af78e78624275d1b1333e3369a80a7859a444b22bce26db2b105acc7. 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/NLS5K2400007.