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 0xdebb2570d4815212af7997d4ebb0aa4f935c325619031d91541d423f6e582d62. 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/099a8687-486c-441d-8a5c-dbc697a64c1c.json and https://artists.proofprofile.net/proofs/artist/099a8687-486c-441d-8a5c-dbc697a64c1c.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 0x75c8de04dae7c2a3252c49ec1af98baaa0d27b6f258fc09e2f5654e29f9ff860. 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/JPWP02400992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa2c5dae2d5c795c69adcb255d8e0dfb83850207c47de32f1e5c68ccf43c558. 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/JPWP02400325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a2a93d246e8f466d1073edb78cc605279a7e7a47594e608a04ff5e762569fc. 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/JPWP02301207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b85be2558e5a80fee095f52e640b4d5c39a2d2a2bd5adac7baadf3d1b4f718. 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/JPWP02300653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3cb1d6ddcd68e21eb137aca4f2dc06836877dcc04aefba2989391c3b657401. 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/JPWP02300607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6474cdb98265e2434066c9a80419754d53a0e0cbc23a942b8607d26db7431b1. 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/JP92N2277364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0dce4031f00ed5ad6508046be4820c79eb070b6404aefac627a8b995affe7ea. 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/JP92N2246688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6206bd1937dcce9f57ad17fe7e753641379601b00850861863416c2003df854f. 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/JPWP02300608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87e21b8f35fa4b266e71731154457390ace1ac47309384d2d901ed4accbac8b. 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/JPWP02300609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5caa9ca66346949c77c1d37e812e8edc52d4a41811b0b578424ae1524ccb00. 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/JPWP02300610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35735e819166b2a87847c8e662573159fe9127c3a77f2972f662c97cf8502ce4. 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/JPB602185803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa8f6124dac6bd8371b8c4d931e464ebf0909ce01750f0288822840bbf42a82. 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/JPB602185804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e10a795f1209bac830aeb7b061221a7ef01ca043d38bf7e74d78a48e8078670. 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/JPB602185805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4d87e5ba0f196416660c71e6dcded551b279d810c135cd86dbb1b8dcd8f3e2. 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/JPWP02300611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f704784a4582c94d155bb53d5d8a83749f653092e6e262e6a1518fefa272f7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPWP02300614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2659d05344b098a8ab0e4e49b09cf4e9a1229fa3d454e6094596efe23ca1a5f. 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/JPWP02300615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57177292131005d8ffcc53154d1b9835bd2963fbbbaad0238199d28b797e3e8. 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/JPWP02300616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b39932c1b8e129574944db337095b3d0197cadf325896c548f312a011784aba. 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/JPWP02300617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5331dba6abbd39ae3928014821eaa2c61a41d07e70467b8ad19a4e564b8c3c7. 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/JPWP02500361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d9becf8e47d21001c867626648c9789e3086bc10d6a0a92671786e5bb83813. 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/JPWP02500330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f340a5efb08afcc55ef4e88d18a3a3272df9b7b264d2204a3928eae0c67990. 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/JPWP02500362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ecd52d5f3a9b6a0573374c61ea9a4f0013e4897346d122a63194e7a26def2b. 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/JPWP02500363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d9becf8e47d21001c867626648c9789e3086bc10d6a0a92671786e5bb83813. 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/JPWP02500330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525fca519aa4dd2e4310ef352d7e3d58823f07ca22bee517faa90975b7f6213c. 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/JPWP02401515.