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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644d5d8b8fc4da50a3d49364b1742ddf3c0f0246824c28dfe66bf012c6d01d8a. 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/b8184295-fc53-4c74-8a41-f9bb8c503850.json and https://artists.proofprofile.net/proofs/artist/b8184295-fc53-4c74-8a41-f9bb8c503850.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4a756c38fdb5c31510446fc3914c9e9e1753e765e976f87b170b76dd93c224. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:21:16Z), 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/FR9W12138225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8dcfac7bc7f4fe6614ab98a2801c45a2f32ffd9a94de5f0ac7b71ae9bb3ce9. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/CH6542337931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92dabb3f25149b94bb8afe573fc4ad3cd788c35ad38b061e4ada0a4bb06a9e67. Chain 2 (Bitcoin): anchored in block 957895 (2026-07-13T18:41:29Z), 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/CH6542337929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294f0d037392652b6311ea5e2ca52ea2beab6aa1d112ffdd031aeb08570d9aa3. 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/NLCK42236068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294f0d037392652b6311ea5e2ca52ea2beab6aa1d112ffdd031aeb08570d9aa3. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/NLCK42236068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638b825f21e426408dca27e2bd84aed1fd10b162b7344e7f2610c1d7c2f4c456. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FRDX62400300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cbd5e006342f73fa462f0e5f5a3a71e65b0bee2f714312c5cb3ecd4cd7bb62. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRDX62408560.
Faster & Faster (Normal Nada the Krakmaxter Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba8bac3c229dc5ff354774853760b7174ebc5fcff2d0ca6801a59e180f05283. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:41:17Z), 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/FRR642401848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004a9a0fc6afcc219413a05f84e7adac3dca5d62c8ad73536744f6a45919ebf4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FRR642401933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e62ad87ae37e8344939a32c5180d8475569cb4f7214549381614655ae29596. 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/FRX452188403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2e6ebe5d8ba6944f0ef6fd6ea283b63b546d9c7169bbd37e2067a80ef81ba4. 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/FREJP2450107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004a9a0fc6afcc219413a05f84e7adac3dca5d62c8ad73536744f6a45919ebf4. 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/FRR642401933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bf57497ce73eb029907e2fef2de4acb72269302ceaad586556db276fe3fd67. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEZG72100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1c1308740097353ab46341709410d5fda0ac15c2196b24e55ee22429e1f3e1. 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/FRX872466328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea4a3ca9f9c8c2878d03aa7670c524b357eea43f6728868d81bdd24c043a942. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/FRDKW2313783.
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 0x0e0a2be0ee2313830bcc4ec9e912ca495b3009cdcf9f9d3b8b3085bf770fc721. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QM42K2433066.