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 0x2f975558e82d09b49cdfa31d0b680bfa571a976b04ce924c89c787a9ba74fc91. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f418e15d-0cb6-4c70-aec8-9a6c1fe2cfce.json and https://artists.proofprofile.net/proofs/artist/f418e15d-0cb6-4c70-aec8-9a6c1fe2cfce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Feary Tales for Strange Lullabies: The Dome
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 0x6e80e2ab238ce4b3e3a8a27c4a42f1dc444618e6d3fdb34d77458c250b54c6e3. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ITO372104595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc8d588d251405af7a5d6b4b0f22e2fa86c0ddd23d567601064feb4f3dd16d7. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/ITO372104596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89aa6fe8f7bcd7171757fe9e1cbfcdcead965dc1b29f228b95d98f27c91b0c82. 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/ITO372104597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c093e9a56515b9c9b80aaac97ea4fcc2adde18700195dde9cc4e79a913d2506. 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/ITO372104598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a923988dc2d1ea669a2de8c3edec449448c2139688794df3ffd5ac7c3b8982b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ITO372104599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e2e4c65ec86ca7ce5ef1e7e8ea78b8b9a6bf18ef6428db8ea0e6178c8a6db8. 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/ITO372104601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8926da5bdf313bcba11f304ef652a28012ae08899423e9298bd0730bf9aa0cd5. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/ITO372104602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f902058495f6d01cf9f777057e5cbbe92cbbd926c8dbb2e52e3ebdc41ae129. 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/ITO372104603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2733e55fdd20de5b07ee7b5fcb55e61f2965791e9c611782ec6c043f06010ba. 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/ITO372104604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e6501ba047c7ea291d6907638dbb50cd300508c9d40b9101df2fec0ef587c8. 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/ITO372104605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b29c6d2ca7d0bd521ca6e79ee8082db3555e5c79588aefcbf9401710059c17. 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/USY251497882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d762ed99d510e4e43341bad5066f98a9717bf91a8e5b23c5f79905d24f1364a. 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/USY251497883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea4e2c4931ba8e7af84776fea83b546a7470ed969425ff20755e7703d6d2836. 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/USY251497884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324633be43aeb3b773de5fde15a0a0a7e8a9bd47a65ad2ea03975ec56550137f. 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/USY251497885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c1e56146733bcdaa7f2220c0e55458f9da51c394304be2fd6dba21799e5ce0. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/USY251497886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6af8fa551af44e042b712118afae1a72dc5c7aaa6bd005ed3651c09c57f482b. 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/USY251497887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c812dc2d80e9b4e48d2654f948ef9ec2de1104cc82b40770690288da8aad810. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USY251497888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2fa27ea8b3fec6c6312941c2f11d42af0b7dc2a2af16c651b854fc48a760b32. 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/USY251497889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e9a584e39c3c4cab610a47bf195e85587cc8a84d2a4f17c8b78cb86254f4c55. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USY251497890.
The Stench from the Swelling (A True Story)
(I Should Have Known) Her Name Was Boogie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fd1da9cebb675ae18c903cd2841eaa15b96f2090fb40c759ceb75c199cf239. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR9W11302268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5943416f77da046657f73831643cf98835fac44032f72df79786b4aaec3120. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR9W11302269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253ade8c69a875f134fc9432bc8e59e630a025cc956680a0c1d3529ae06deaaa. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR9W11302270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9eb1741f4a4290c46dfe2c07b58b95368c7f4856f0e0c50657ab6461bc62273. 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/FR9W11302271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf8527f42bada3db6f09316b7df38faf8b50961ff21a1ab7271a832cd3c48f4. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/FR9W11302272.
Giggles, Garlands & Gallows, Pt. 1 (Order of the Red Nose)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e5a1b0ac39c39d940c77404289353b3f52cb127230d74880b1fe7b0bfd7283. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FR9W11302273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e51fbcfa856bea12add1c4792b5f2500409f6a79c8eb2471635362cf6d5aa5. 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/FR6V80798191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976fb5168f567bdb5cddc9bf0c88201072fb340f2297bdf63b5e875ca5c81307. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/FR6V80798192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693624dad842cc490bbdadcd40709c111aaa6f994546a6f42387fb5017b0e3ba. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZTAZ2398340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f599a05cf850b5c3b69168cb460872594f8ba491cc9ddc8bfb51ef6d9032d19. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/FR9W12113898.