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 0xf72cc73b444b696cf5e82fc4374358a80db32a6846efc3a3f4ad2b23ae28dadf. 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/0ffdf57b-cfbf-49ae-93c3-e8f603337dfc.json and https://artists.proofprofile.net/proofs/artist/0ffdf57b-cfbf-49ae-93c3-e8f603337dfc.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 0x1b223fb89a73ff74ca3aeb3a671cd7cd59135e5337f055ddf8122d38eec81981. 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/QZNWW2167516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9faf8b6921d9c9470d9a38fb9dbf5863b0bcc066ce57f849926fd43201be52. 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/QZHNB2126593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c313c37cd1ed13a59ccaa2020eb205db7b7c5d564a7294a0ef235075a0cd061. 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/QZWFF2394563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77e5e355925ef5d9fcb1fef6323a43062eae90cc933ce3060dd401dd66436c0. 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/QZTB22393923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac371c2df37d99d28ef9c63972dbf9b0eb407661abf7dd14431756dadb8ea13. 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/QZNWR2325481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63330d9ec24761b33e76bf0d807ff2095c90e1c93e9f2d6ccabc2d59ec2bc6e5. 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/QZK6Q2345204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5006c3382080627d422615f14befb4b9700088556a83d3de849bf711ed4d41af. 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/QZFZ72310224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4941518457b5f125943119888c4fc74bb146207ab19cb8701226ed2dd4316592. 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/QZFYX2365082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabd4e5c18a4b8c923ca569976c6536db6efe1048ebaadd057194408f98ea6c6. 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/QZTB42200332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769dcae5f6c040055619694a3f8a269a8475e0c9bf1ac28f4eee06ea595a8f58. 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/QZTAX2262944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a32ff488c4377ace473585f4ce3c7487a7d44da0832185717c9481a0754115. 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/QZRP42291332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bc0ea1f1161e964774755e37045285dbc4ab11eba4323e640514b9a0233ae1. 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/QZNWW2261822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb3e30816bdb7e42b279da3d808b700224b9e6c84475e69bf1b1f29dadc99dd. 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/QZK6F2273134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251f8024156a63f9ed62badd21d1d64069930774a4d785d74d1ea049c85d56c4. 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/QZHNC2265976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96dcf14675769ada00efe98f2b1c843b10e331d757322c741128c7fa47c7776e. 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/QZHN82217805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a19920f899291ffc139a3f169c1a29c198f4712928959320f3e9e0d67a5d58. 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/QZES82290850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc452e9ca535ffbfc1d783e7cc99ff894aa67fc5489d9b81c76da0fd642afa85c. 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/QZFZ22223688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac528d0e4c8fd7b02a0128952b136a57bbf3ab1ecf3a271accb56ad4a4b5e5ec. 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/QZRP42118333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fd0b7ed665f75a7ec1fee43d7eefcc9c334f8acf5b71f66b6f66d6ac5df228. 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/QZMER2144957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d226837b0fe0642e735ef9f4142616e41f47f0b4b49a482ddebfd63793af97. 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/QZMEQ2107945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66e2fba4966001f989a0b2febbaa64097f45c892f5f813a9ba70d17ae4a29f9. 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/QZK6G2140374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081197c0034daa4aa4a3aca26cdf97a501d91feff3b612d5df6032a55ec73719. 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/QZHNA2174876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab66986f14ca336a3cbca12e53db6ca13107c0701309e49864f94de20acbbf26. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZDA82124612.
i been blocking out my mind just to heal myself
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8fce4f19bd6dac09304ca8e38f5e875256d878ce248876408f948225be391f. 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/QZFZ62135291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690f4d60ff8b4725e3df4ad9bf2d23e5f77a85920003256f9e0b458c3c87c671. 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/QZFYY2123977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f28d8879558e946754ef6bf3e9f492a2613c69c445fcd7e97d534ba467cee94. 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/QZNWY2056642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd63bbe2ac4f616d15c9907e9c31bcfe9663f279d0e5958a69b2eed03b8f04f3. 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/SE6I32305481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedaaa24998a700d0d9e641204e60c81c73a301eeaa739571b9349d0bfe36f827. 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/SE6QE2072403.