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 0xf1622d48399c741a48753fabef1802a1cdcb4fcdd8d5095c27ef7c0b88dc8854. 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/c008e5ae-ae35-43de-8bc3-899520e9c19f.json and https://artists.proofprofile.net/proofs/artist/c008e5ae-ae35-43de-8bc3-899520e9c19f.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 0x43fcc812f47057db044db774165d7048ea3f4131dfac7f681b2b8c8c7e9fbccb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USWB11300098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5df6aa8a5978f4306edf22e962e5d9c6b0a08ea914242060a6d87bef8f6b53. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USWB11304080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06f9bcc00acaaa2f11b9f147e61bf152647ffb168b6f05b9c5f947e03ddd2b8. Chain 2 (Bitcoin): anchored in block 957629 (2026-07-11T23:44:46Z), 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/USWB11400234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbef547ec15c88efcd138be354d89f896e0ec6b7088ef2c0afa7d109fa2ba2a6. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/USWB11303517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b6830db750a69772d17533f2b7e1b02cd59b85fa168eab11a93b268823ff9e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USWB11304082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e1ffb615a68c94c4506bb9738c37d3b37889e10d2ef4a92e9c7acafff5f8cc. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USWB11302008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd201888df31d790dbebaf42ed8472e8a04bd22d9d6b1501b8666b016c800c4. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USWB11304083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59343917f8cb10e5d26e0faf08562b40389d05da3734cf80cf4f90fb3b56a20. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/USWB11304084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3618094a9f3b26ae55772e3b193e04d1a6a91c45d5cc3b3541dafa4cbf2d552. 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/USWB11400235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cc5e6f084b975705abc486cc85f05a835544023ea73ce49791cffa94b8333a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRX201663326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899e0c5d978aff486ace7664d7d3fff9040fbb5c12b1b88da00da7b5a23b35e9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRX201663329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa1293e575c4c334ae20a88e853674f1850db061587a4b2f5b2b0c1eac32fe4. 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/FRX201663335.
Judy Is A Punk (triple j Like A Version)
Judy Is A Punk - triple j Like A Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x376b333160d436deece0082d289001daf4cc8dd87844f36215aa11552dea9fee. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/AUAB02300594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253e0c4fea7324d549459f02a25ea65ed73259fee2549585c8452eb2d2156aa5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZMEN2318137.