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 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 0x11375da8febdbd2ab2fcc8fe245edab8109c5d9ed50b42746200a481fad2c65d. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8238e1c3-15fb-43d8-b795-302ada3f9e33.json and https://artists.proofprofile.net/proofs/artist/8238e1c3-15fb-43d8-b795-302ada3f9e33.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 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 0x207bd4c0a47cfe885658cf9f1fa0c5e0e86fbffd51cdce042fbc1ebf48f210ef. 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/DEG932301978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015d58e879841d787e381c1d4b8431b5775b2c8bb5650a1f47f48dd2021aaa71. 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/UK8261901285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f0ece58dd628266c1a1d451a4a0b68a902e5ea3c9fbd93443aa1250b534921. 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/SEYOK2403929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657d528c938a5c871ed6459656923d14b13789a11766fb21183cb436a32146aa. 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/UK8261901286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f844d65528bf83e480b457a785372661001912080658dbbcc695735e7882c3. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:51:07Z), 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/UK8261901287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056f9afd6264d778aea349dc295b802a9198d6d037ed6588e53c7563349788c7. 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/SEYOK2403930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea258bb00f1df1938778e3f56dffd4a14c9be87c1b50a95812b0eb963b4ad53. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UK8261901288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93ef52ac4cf4a5c3b77bfab027df8f0535c7681a8544899cdf5d3b991b2e426. 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/UK8261901289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5e0e6be01bb87353f56e04bf8fd1b57761859385fe0f51835ebbaccc319bfa. 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/UK8261901290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8f7daf653ad03be1c8d87f24acc206e71dd3a4f363e2af9d45db1792eeab43. 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/UK8261901291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b818864bc6c69db8984f31a490634ecf2b65475efd3f3441180dfeabed4a53. 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/UK8261901294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe869ba1c7c38a0912d89a88d20b685cac862ab104f1628390949803953cf5e67. 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/UK9AV2201942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae5c9a262a1cc795a4e1b64f7a16ae8b43e1d3a9f8cce0556b25561f569a46d. 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/UK9AV2201947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5838f98875aeadf1758de207220a774e732c7ed7817b448bd555f4bb62eab29. 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/SEYOK2120104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f2d8eb75ce990550a4be2d58bed329d8843aa5b8f067330be3038af1282f22. 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/QZJCP2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96550bf1001fdaaf23301e9993757ab0b631c32be5ef14e5dfea4ea98903f5a. 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/QZJCP2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeef21f30a58880cd72ebe9cc40a728c0d49434e629a3d092ee95522953e307a. 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/QZJCP2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff35532684966df6397274c4bec6129fafc3be6ec288cffef5d92bcbce92f725. 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/QZJCP2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce9276f9a66ddda7fc9f58bd79461a2c2879d6093730e5464968f2c314b6361. 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/QZJCP2100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85c85993bf3f2f8979ec2f4224d7ba7779dd82ad8566a2dc715772634d11cc6. 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/QZJCP2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523c8f88e0c29536e6f253cfc95f66120997a18d2c2754a68921273b6e8fd53b. 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/QZJCP2100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0543c2cc8b7aaaa7b67efb9e31f874a158d6d4457f26ee68295d3004cc2a3427. 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/QZJCP2100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe628c7ae1befbd329b5f9b474539674970b7d7f488560bf2f00cd950d30143ad. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:29:55Z), 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/QZJCP2100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d17cbd5e4ad81839a69dcb1d7dceed8697ba0fe2be30267b3712d589b04cfe5. 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/QZJCP2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968132fc660b09ac3074b355e43a26c71a704bb8ccf678487ff411dcf59027ac. 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/QZJCP2100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa372a8e4ee75777ee7e5d08739b810fdf3bf2238155c61c8c7b1b1786a53b7. 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/QZJCP2100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56baa7ec581be50cf851c1035b3459c9a708252f3200368c04c7817c8a9f3ba8. 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/QZJCP2100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193d48e3042cb39f9861937e9bd740068b4f33e0eb4ab6c65b8a3140caa71e08. 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/QZJCP2100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc372b1f1d2603df70e9543fdb4dc13b258ae259e36e3f69a9a6f7ab8357d30fb. 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/QZJCP2100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88594a1092e8f2629ebd801a6c1824e624dcfc91ac41f6860e6c77b3d576eaf. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZJCP2100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46d7c3eeca54b11a0cbeb04136df1ef93953a77f7232fd7f82b13c0fe188fb4. 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/QZJCP2100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6121c4d859a571f63555ddb17081062ab4a3fa8e838ce11ea43e383a1952dba2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZJCP2100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9adf50e5cedd4990d5e9e0a247db56720eef82f7fb964816dfc07a8792fe51e1. 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/FRR642301328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2650e697dfe01aa9f40a679fd09d527651fb039c2264a55bb91e878a0178e805. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/FRR642301330.
Dancing Around Sigils in the Dwelling of the Black Moon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac70f225725aaa7ca832beef06d296bb0b7cf68714e70a59c66e7979c5ee7a35. 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/FRR642301331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15dfe77ff8f606cdb4b905e889a3e1cbf8dd6cfd7c2f2dc3f3ef1664ccf453ce. 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/FRR642301346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2805cc92fbbf10a8614e650f893b247301cdba042a3c9fa1a118d9cf190305b7. 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/FRR642301351.
Scenic Route - The Road Less Travelled Vol. 1 (Compilation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca53b0fc91238db33140fbb359f190fe0894ad8981669ce9ad07f3f9f61500c. 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/QM4TW2265338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba121e64d7de3280b185f729ad9b81c5d3ee51de8ed9b2bc434320b520734634. 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/UK6822421224.