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 0x52f4be4053c2868ca9b4884b9eb168fceb5a090d0fefcc233a91d063d1ee3f36. 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/0adee5dc-ed48-4928-ae1e-9897fc0bea71.json and https://artists.proofprofile.net/proofs/artist/0adee5dc-ed48-4928-ae1e-9897fc0bea71.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 0xbdbe06ad085aeb1632b5edb9a533448443be427bc2934822720101ce9fb7eccd. 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/GBHLW2201804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6434816e593846b4ce30241769e5aea6add629420d82f6a5de2044b34ef5f461. 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/GBHLW2201805.
There’s no end (at least none to make meet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de2f792df0c187dfcb0b3081b91f729c3165ad23b408b62afd318b2f62efdcd. 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/GBHLW2201806.
wanna go crazy if you wanna go crazy with me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72b024030b588708910a9593eacf77d9bdd9ee5ccb73808a2517782438aa2cc. 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/GBHLW2201807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1640fae3a053955b9b18ba2ff05443cd7e1cc7114cabfdb47fceef02acccdbec. 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/GBHLW2201808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561634dbec769a8584602943ca3146b3436fcaebf79eab7d82122d317d5c396e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:09:53Z), 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/GBHLW2201809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068f7e17bda6205694c09eef7fc83046d6605f07843d2cf78d625052caf10e2e. 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/GBHLW2201811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ee801b316b47eecb6dc067793dca4c28667685801fae7c4652a195b54597f1. 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/GBHLW2201812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5934a778259da65b25d17714679dbe05d6b62b162ed74687921b8ce0c98b8e. 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/GBHLW2201814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf476b8bf3ebf707f57ed55107bd7b106f538c8dd97451a08330f46d23e3594aa. 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/GBHLW2201815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88471824309bddc71784f4d5d1f19a8b6c473abea00972dbd5800ac549ea4c6. 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/GBHLW2201819.
That Kind Of Faint Hope / Excerpts, Outtakes & Radio Edits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb202811d3162f1b0134a16c80e66d3ab1336f999e3b7f606cc542bf7128b9ba8. 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/GBHLW2103276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba70cd5a477a58d8380bbb7f2b57621daba2d79c5f3981e2a9686a4df3cb3c8. 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/GBHLW2103278.
Music For Acoustic Instruments & Feedback
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628b2b9a8b14b4a226457e8b5abad472e7976b2043260f25a740f70d5759832d. 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/GBHLW2100807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc95d9bd9d488eae10178e42897daa230446add3262cedd81b421f2edfabcaa. 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/GBHLW2003135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11de1970795dafa9db3b84a63180dcd83371cbda8d99ab722e5be36f2417b26. 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/GBHLW2003136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ced2e5f18714ce31565ca9b8895935738594b8e113b52cca699037a98f4d54. 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/GBHLW2003137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2fd55cf7c9cffe9c7b90b26a29d03314b74f0e8bcee098dcc4e971605e3419. 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/GBHLW2003139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d6750e1958d5f8eec4ec7bf377bb5faab2caf274e050f0f2af63728275f0f7. 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/GBHLW2003142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7d1c2af2154e7c4b8cc4a2d7ffe2b381033871fbbc4f59dd99c4ad24f7fe3a. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/GBHLW1800309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c0d83469c8a1c55ef317e72556d0cb7ba3e6cc25a630f502d8e7e5f46c7e85. 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/GBHLW1800313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb50d201653846b3391bebb48076cd1756bf42fd71e807e73e8965a63e8b8cc. 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/GBHLW2001870.