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 0x05fb1c0410981c62581fdaca381858dec4406ab425f80327c42dba0c81af6295. 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/8fdf18f8-9085-4ed3-8ba0-ddc9ddd7bd49.json and https://artists.proofprofile.net/proofs/artist/8fdf18f8-9085-4ed3-8ba0-ddc9ddd7bd49.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 0xfbdc6350cef2c87945aedb45fe95672a42ee00ab797849b3d09b734a02315f67. 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/USB4U0400360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd557308a86c58d21a868948e84ae2543ca71c151ee9dc065ea2aeb24c96a77a0. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USB4U0400495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c94a697c11ab7cef1def3b91b3a7d7315e6d7bd1f872c09ed0fad05705c5cb4. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/USB4U0400496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f791d01918bc067244f82d0ea49ad5a3cb5711b5960c9a60646e2bfecccafc9. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/USB4U0400499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c6f538739d5100d237a05dddad4dd9abb93301258a737b7a8d56b3fbc2713f. 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/USB4U0400500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9c5674805409a51a455a073818f8fdf5587ceab5d2b99a05880762eb19cd7a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USB4U0400503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd6ad8e74535ef2fe54f3b7be973bb4df3fb965de21fedf6fa1e7fa2e4f7cf8. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USB4U0400781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81b2dba86ff19482611034b659c5201a3384ca45aa48729feac4cc121eaf5d3. 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/USB4U0400783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff0644d2b05a58c7cd767314b17a09b21f38c24f74ef2b4173be453bcbac6c5. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USB4U0400784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf3a46122f78d777c0011dc9aefd279dcd8acee1b44667b85175d987823d638. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USB4U0400786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1758b363e44e917d3fff25eb95f15ceef0691b69e3d0abab10af423bbb3a16. 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/USB4U0400795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556bd479834c3394da4215c55f1767bd307eac23713b589fb02ec9821d0574a9. 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/USB4U0400796.
In-Flight Program: Revelation Records Collection '97
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0038458997804b458a51bb53df27f91449202b30406dc7b244669ff7e7299d. 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/USB4U0400619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4258f22d51bae94a6c6f574264f4a94cdf2678a018d830ef0b56fcceac4640b. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USCN39701030.