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 0x047be32111bd17edccb20e2d6ca8af6b99503a355eb5bafbd5624c26cb276ada. 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/d336fd57-4522-42c3-ad11-d31c13586ce4.json and https://artists.proofprofile.net/proofs/artist/d336fd57-4522-42c3-ad11-d31c13586ce4.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 0x285f449de1d75da8f52e446b8b7ef1ee8e6ecfa638956897faf72570e490985a. 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/CH6541871318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7621f44893f6125dc1ccf3969650b73cb51facc44224dc87fccb37f6a5baa799. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T03:52:37Z), 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/CH6541871321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032d19fa13782d4ddce12c99e064e4075909399efe76ed9fed01d53afeb998b7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CH6541871323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c62769e95624acaee21d2602b89bd288e19f87fd4c2df14038f2613a9bb44aa. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/CH6541871324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d03d70c92d27fcb882d75138bc7991c4dfe8ba9d089fcb20bdf7eb2332b5dc5. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/CH6541871326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab62c85a1e9992f467d5b21ed7435727c5f955317617265d4ddf71fdcb0dfdad. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CH6541876956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8a5fc8fe8dee5c6cb59c6260c701e5fdf8676ea69668181b6833485a29fff8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CH6541876961.
Puiu Chibici , Vol. 3 (Nu Va-Ngrijorati)
Puiu Chibici, Vol. 3 (Domnul, Desfatarea Mea)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb782429a04586ee12df13048c47bdd40bc99489d9be34ffeac603ddb6a8e21. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/CAF8R1300115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e67eef3070a00ef76862803b673c4b9e1d0da36b5f31fa467b935d01a20770. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CAF8R1300116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c231e6f84c46a967e9fd8f24bee2a8659e4727c84dbfb786c8bc1c60d9d1ac. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/CAF8R1300120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663916fcf791e8eadbc5b26a6db01d0125f111464f6c8b262d235f41f0134449. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/CAF8R1300124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937d0c4889ca0bf8f79297f7b2ac1cc871fce57f71cb1fa1f62fba5ff757fa0f. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/CAF8R1400303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1e5388dd3bff4b727b02628e8b1132a40e554b476fed445cf9772d9292db46. 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/CAF8R1400304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2f5a95eeb95cd319fc30147c4dcc866d3c980727b10273bceb7ac98bae6052. 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/CAF8R1400305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ed73193017c42feb906fdb49748670f3b8f20d87a7b4a7d2713435faf9cf26. 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/CH6541704038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7513af26caaa25fa650d584954daab1f771cfe3d625eda63a0ba78c4e14b2e16. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CH6541704039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd1cf39e11438a01197bb971dec44c7f8bae02862f8259826d3325d1963d615. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CH6541704043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d1045c3aa64d6ee240c5795e69392d822bc1b878854bcdfa80974e5eb862f4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CH6541704045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85bf37da4b909b3fdcc40ef6f10446e022081ad85967983c3363985077342f92. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:04:15Z), 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/CH6541671402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9631c3798b5562c52a7fec3d3895c5016b5ccf14e5a65f1a033149df8ab13643. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/CH6541671410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76e4dd1f79dd971443c03410b86c46299b10432db74b5689429ca728d5a44a5. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/CH6541669496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9eaf744b7ef5fc4250a0c33d76f09cc839964658b4b2aa8985415c6b73145a5. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/CH6542302081.