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 0x9ede59ec74f91e817526462881859a4787e3f2b8650caf4ef6e8efe0e9a38d48. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea0dabdb-5ed2-4527-9761-2d140c81e433.json and https://artists.proofprofile.net/proofs/artist/ea0dabdb-5ed2-4527-9761-2d140c81e433.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 0x86e1d1f16bcf6723df4f4b82062acbf081d9ec5c3690167c87160f2f8e70162e. 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/FRX762276856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3b5ab28a8a319822eed568fd26895e549bb3ba5b01f65127b9ae1c7baa5612. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/FRX762276857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba98876e5c72dd40f1f289b6308356b0468a0bad5390fba86ee78cd28c8c7d4. 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/DGA072205447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d325d1a80ce24750284a41929ad08cd33a3dd807a8387f4101b05ba9e9c7caf. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/DGA072281303.
Cherithanu Srustinchera Rajyangapu Nethara
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a22431a1fbd5af1d9a5e07f40f59a202247fdbf23c14de616556dd25f2fcb97. 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/DGA082480761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4fe95de471e181bc53aa265edc08b335acbfa6e142003fe111bcb9036c027f. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:55:58Z), 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/DGA0T2412251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72c01262aed8421c11c231eba76a9ef52f1c787ccc8dfa9fffe4479ac0c5459. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:09:24Z), 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/FR2X42551518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8d7ea5c18cacf55a4a8d6dedcf69f7c51edbc4990c8a25f92fbb33528ffee7. 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/INM5B1903465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5472b637535980428a75d8ec21b79eb75d31194a8f48b5041fd90c7797a3d1. 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/FRX202305987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc843d3d172d566a89117e077a6449d81bda5f48e075e021a44ae6c0cb7a42ba3. 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/FR10S2355575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8d88bfb07396d66959e79f5de107f8bb71fb1bb03d3e48333979db0a1d9474. 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/FRX202305979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4ee74f0731cb1f88d3a25b3ac90d49e896f6c7d730b50a7a3a4edfbbaf93cf. 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/INM5B1903304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7317f0fe52bd198e5b2b1b5164154af5f818252168dfb418b0eb9e6cf6ecd81. 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/INM5B1903305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e01e4b1d2273c4999025f59b9ae5ee1a17d87006f2292834ce31448e10dc8fb. 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/FRX202380082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a4847f588e5e3a17a5c142914f18bcd3874362853e7e143c1bfd0d39cef9a9. 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/FRX202387422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e4acd7792008d926bccd08978e516d11aac01990da34e8158e4cee2961c690. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FRX202305989.
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 0x1e4a6e48effae9d594d4e56658fe544e1dd0b3801b0f83240f98dfbed2e1a5d9. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/FRX202305990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569bca1a5797e529e32d937df7a584efd6c9e572dee7a9696ca61018aa09f198. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/INM5B1903463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e5c13317eafc31bfe170955cecf79516d765b861978ee973f1f31cd860b32f. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/FRX202380083.