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 0xf0cf5bbce1e2ae7241253e40059473e6dcf480fcdd745e268d34717f2fe9e25f. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc0582d7-6399-4af8-a1f8-6de923504b05.json and https://artists.proofprofile.net/proofs/artist/bc0582d7-6399-4af8-a1f8-6de923504b05.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 0x928d1b0b70239e505cce8947e5556b29ec8c56ea8b3ffd2bbb30d7920eac0653. 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/UKXN22296711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdafea6c5f307387b0ae8cd48734003e27eb83f1b1ed27d47f315ede8292136bc. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/UKXN22296710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e01bdce139292309b595ebec67133b33cd10fecbc92ff66a639b385398a9d68. 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/UKXN22296709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c272afcbd20e6065e8719639e6d3afca1af0e747af35e08945c90e923bdca36. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/UKXN22296707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447c9e4c59b4bac11ad75d247948e7ef692c9e7c76b2b084b022424e9cf51a67. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/UKXN22296706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754d610cf0f39815f039fdce371f23de47a5a3ebda99f25d6bbb9d141b68f472. 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/UKXN22296705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50253b95909c1b0abf442692a1647d08725d94d2356d1119b625815a50119c26. 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/UKXN22296702.
jesus candle in the liquor store - Alternate Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc0c22ef7288bcd420a2e2f46738857b463d30b607309505f7a517d842c89a3. 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/QZRP52498389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b67ce7148193965e3950bbeb606bf085c7cdf3ef74f8ffc6f79aeff1797dc5f. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QZRP52498390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf913fa582ba3b9df3d6b6fdbc0ef47d5bb8859134d4ce2dbbfe1c5f37664bed9. 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/QZRP52498391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1e87467f73f3b06037ff43a2002c1b9440849011d4031f9ce1de83898bb87e. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/QZRP52498392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac16f501a4dd2167b6760aa1283c79a0a810c125ee7728f0c82e17e24fb3e47. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/QZRP52498393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa4bec08b2e2f875fa0c087518bdc5a4b3d57f6a69640243bc93f62879b8e3a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZRP52498394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7607f57fda2da1d0c857a29973cd1679798ba66825191fd9a75a412f70114a5. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/QZK6P2463243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f182ed7cf664c564bb4aed5f7beaa304c6ad97a1be1d14523c46402a86a3f37. 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/SE6XX2156682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5ee2c4466db29dc36cd99bc7067918d8eb2fa7d219f291197dbd25158319b1. 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/USHM21865504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094386cc7432098ec631d04b29e6623987ac5291ac3979289f9ab6c3feb245e0. 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/USHM91718302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb082f1faf23db974c5eb608fef5ec5c04854e3ccf69fd9d67ed926df2cf195d4. 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/USHM91718303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e022c3921e7043796923844a67e30d5051993c89111a83e3f29086bbc07503. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/USHM91718304.