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 0x652413f6fa47951e591bd9f1edd3783b3804a491e2e8e34340433c2f125d2b68. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed2aec06-9366-46bd-a9bf-d54e80f242a1.json and https://artists.proofprofile.net/proofs/artist/ed2aec06-9366-46bd-a9bf-d54e80f242a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Living Tomorrow Today - A Benefit For Ty Cambra
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 0x89cda8d23f0c37689c968d607040053ea8031a49043c930533a3284302c3a518. 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/US4ZV1010234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc869240f911c9acee082346d13df56eabc8628e1061414d2c8c96b932f66a889. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US4ZV1010401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c0ec4e7e996e11a8702703ea9ed3013b185a654a630fc1e5e30a47a52f17da. 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/US4ZV1010415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc051683cd558bc82c3b62cbfbabe30363fc83440b0c58ee7b269233f032396. 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/US4ZV1010422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043d162b47802897faef3e6926bd53b3102ff4b5c1b1926a858ecd1ee0c29e7e. 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/US2Y30700227.
A Sonic Documentation Of Exhibition And Banter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55031d1d5bbaf63708055f22b38d0ff6c9cc2652cb16bc29631570a7e414796. 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/USB750404501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42061bb65243f9720e97639519c46e2bc827dc240bdb3128e46f688dae7a6be1. 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/USB750404502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d580130a82c9a1deb8f91efab07bb2f49c64d8f8e8a882b39969ee33becc189. 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/USB750404504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2fcafc737849f159dcdd92fb56d5187fcd8dd037ecb6f7c2e03fcaf5d9c3d5. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:59:39Z), 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/USB750404509.
Take Warning: The Songs of Operation Ivy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623ad98129d72a649b7454e6d96a9477f294f3955758eedffe831ec60a744860. 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/USOEG9770102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6de03371cc9f7464229f01a30df2e0772329dacd74a87115e0b495a6b4e06e. 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/USOEG9770103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9710e311970bb7da2f8d19c587c063ee04ab6a5241c191369a9bb6075e8fe592. 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/USOEG9770104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ceb92818206bfe1da179dd04568ca5b986bcb0125fbd9468164835e1b6acc1. 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/USOEG9770106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b61f5005d12deb0eaeaa1f21b1b3c9e08449c1e2ceaa56d495959f947915cf. 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/USOEG9770108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d48782399cbecdddcaf7cbcc190f14f72d243d49c04d29e58466faa4b5361d8. 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/USOEG9770109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2674c7da33715d2f1e3b4ce5e56abae42015a15dd471e8885abf8cce72bae8. 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/USOEG9770110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0e78deebe27d895b6ccdf6eae9498dc26184e0b681d5a3df46d056e7e5e9a3. 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/USOEG9770113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d92ea3a9b6dd8a24c500faad127d57ce532dde8f1f18bfae7b56d41ab08b3d. 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/US4ZV1010426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc206fb374e2df8b46184d68be8b9849134fe7d3a8833bb4c431fd8ea18d7b7. 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/US4ZV1010441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b486ad35201e7105009c1e75bdda2b5811d768a1143ce14c1a0f39e484e227c. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:01:40Z), 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/US2Y30700855.