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 0x4bbc8b945300316b7f072464448839cf10ea476a3036d635d7a78490110ed20a. 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/27d28db5-da4f-4527-9f72-99469feb95b1.json and https://artists.proofprofile.net/proofs/artist/27d28db5-da4f-4527-9f72-99469feb95b1.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 0x812b710e29fefd06e64531243db1b5fa8569ca3092c79162ee717ab26dacde04. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USQY51617493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281b2e22b1bc0011dec2318575f64d11228ae6b1712f095e3f54fe11069f80ef. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEBE72100800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3149b01dc610f50c5707f029b883ac371dbd4599871d8485bac48ee54f8b2440. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/DEBE72100801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a22c998ce869e86a94cdff77e245d4f5e98418951a94cc3c49bedae044a140. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEBE72100803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1234414512f6ddb64bf9446da2293e8fbec0ab7b0fb6e66eed4af25dab5b06. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/DEBE72100806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4db1a80f761425b1bb798c4f75601552e1a97eeafaa85fec4fa0b6e5592b0fe. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/NLF712401154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b76edf45e4ce386869b630f3e003b57be64d90302e69a9963f214fcaa098c5a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DEBE72400410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e39b17d262884e47fc27eb1a5d282a6c6fa001d178332505c14f3a4cb48d02f. 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/DEBE72400471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001e81fdd94bb3782222b420d5ac003634c824311de47bb3466bd5144477ee65. 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/DEBE72400455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b06e8bb4b64a776376a0c6745690a9449d17a9ea417ed766c9c75daab595f85. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DEBE72400593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc124716fea02a397af99c7aceb556f0cd3f2f746c5b8bc6264f07ee04981430b. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/DEBE72400690.
Get Physical Radio by Birds of Mind (Body Language Vol. 25)
Don't Leave Me Here - Mixed - December 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5e39e1a0dbf0a028d1bf447e903ab30f83b68d8de3d4e387da6c71120cd4a6. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/DEBE72400746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f70d7deab038b54fbdf7adcd0b9e0271330faf88f7e367b75806162012dd72f. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/DEBE72400747.
That Sweet Finale - Mixed - December 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8405362a8646fa462b1370a3f216110e9d4752263b58b35e16b66ba2f959c49b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEBE72400755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284af711e492342d5c970552f3573deb918d6009527a952ff13e581a1dd7dbe6. 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/US83Z2428494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76d7f7e42949e6043f06ea0f3578f9395b82d057d3cc4dea28efef70be90dea. 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/DEBE72500171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb8c8eda7d83afc9e8552f01a2b022181c4ab32589bac1415544bd129312aab. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/DEBE72500175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8c2d41e7751b03c3256855f577fa88c5beca0da127284da9a21ea809e28911. 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/DEPI81802209.
Children of the Future - Maga & Friends Compilation, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a9e91750471104a46d1c45d1558f69280ec5fdede3650dbcf012d8748523c0. 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/US83Z2023184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4db1a80f761425b1bb798c4f75601552e1a97eeafaa85fec4fa0b6e5592b0fe. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/NLF712401154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a12405a23f826c7e77f9949f63822dca3bb0b99d9df890ded87e4b0d67a9512. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FRZIN1600891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0fc4730853f16e7769b8d122e31bb68ff067304a2cf7cc5d342788cbec57df. 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/QM7281714590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26226c192bb0b69efbb82c3017ce79c7a0726a12a5550dff49e663eee2dc45d1. 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/US83Z1811167.
Chall'O Music Presents Chill Out Experience (by Jean-Marc Challe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8c2d41e7751b03c3256855f577fa88c5beca0da127284da9a21ea809e28911. 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/DEPI81802209.
Get Physical Radio - September 2023 (mixed by Rockin Moroccin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb62fc2b0a254064b1990f428e9a2120cc883623f5670048cfcd9856dc5fc845. 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/DEBE72300815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cfa4a84957a24f9a50ff8cd795f84475b7572a687686b7bece78f39c62dd241. 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/DEBE72300819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7b91815ac4862f32961529aa86e139f9c7a9024b0e4d54614e729c72f6a894. 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/DEAR41772058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ae898af257267380fd387ddeede1b8aa6c4b4d6ffbd97830efac85ff38c78d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/DEBE72200599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e65237727d3d0d7a0a966d00b9058ffac7dc645b2cf1b1c612d285955fd164b. 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/US83Z1831754.
No Time for Tears - Mixed - November 2023
Get Physical Radio - November 2023 (mixed by Samantha Loveridge)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b119d51b12d16dd4b43b23f7789f476636ec9fcfd46ea7726411f3eaedf7a25. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/DEBE72300871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb435cdbfc4ba6d8d4f5f372d930d613c118b814187e06c232638a3e4bcac8bf0. 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/DEBE72200170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcaf630eab87f40844663918e1693288a4bef4a76c4d481d8cc15b4d1dabcc84. 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/DEBE72200171.
Young Wisdom - Birds of Mind Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2333de75b8463ac195f680300a7585bda674bfc30a3254a5768949274915d035. 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/US83Z1775777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a05f958387daa612bf386130c7e2ccf3b2d72903dc7f0e1ad52f046c32b02e8. Chain 2 (Bitcoin): anchored in block 960101 (2026-07-29T11:46:30Z), 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/DEBE72400757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749a8c6d3a1292091a017fe16b1eb7777d1c49f94b10006ae804042eff6ce650. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEY471617009.