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 0xf5fb1482a5f01e6cdb2833dc8403fcf502eeeb1da25d24ed67b88d1e10abb575. 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/1d20d7ca-0141-4ce7-a5bd-723ebc2dbf5a.json and https://artists.proofprofile.net/proofs/artist/1d20d7ca-0141-4ce7-a5bd-723ebc2dbf5a.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 0xab397c40118820a802bc6489b5573e0a35979795358ec2f68b9756f48a3d54f0. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/USCGJ1479852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2416efa6e9d6691e036fe0356fb77c271063c3633fede6be66a59e365044726e. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USDY41709374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90a33415fb2b1f426a088e16f81ad65b67bab4dae6f112987ddb78360182429. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USDY41889169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2144d52e8c4ad83d1ecd194305237235954b4cd556c4021f978cab19f4d2cf0. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USDY41889172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2feca1344b44bd3fa572fc06cf125f7e978974cbbefe67ee53584f6f0193f4. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USDY41973675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca507379288a73a99d424d4e617db937a591571a6523e7540ebe56ecb78c04e9. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USDY41973678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010752b6e153c329d683398d87ea80190883ddaa54fd551eb1629bcc4bf8c2e3. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/USDY41973679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59a22ed43fccbc86a736f320b1545da7b6c6dbe6941a6b8549d8c7efef440f9. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/USDY41973681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebff04a5a3e4038b4e87383d2f9b7393ffcca116face48906ae1d8a2546ea09. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/USL4Q2141352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca8b540635dd4e793fc10cf4d442ec1161c16f565a146f57103cdae669b5677. 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/USHM22253474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca4f5eea2ef8f3c7b66dce1116e9d015aa3b684e79556c834ac806cbc4e4cfc. 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/USHM22253475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2ae14384a1435fc0a9e1d048b93dd2cdef6da8141112b5e4e11d87663a70c6. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USHM22253476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2092d71c48ba72960def0a0f7c0fb6aac7b6f1c3f5de5ea0e56b3eaec1a56540. 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/USHM22253477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976c5fa87cc89c237d2cc60d4258630bdeb35f31ee05136d2b45fca1db830a93. 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/USHM22253478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad95d13c8c54d766b4c9ee10ca3078385fb51549d087d92ef4ab330a45700b5. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/USHM22253479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87641dcf3f35268bae07fdcfcfa18eeb22b31924605261e2a913ffe60ee8ed2. 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/USHM22253480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e6a6a6a57154ee66a5aab9df051b25aa96f7b048708c07b73e394082800f36. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USMH92310787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375556c5856c4d80273c7a5885a5729dcefb8e867cd17d31ccc839fe997ea0ce. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USMH92310788.
All Creatures (Hallelujah to the King) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b31d344dfa93db9668c91223698fcd67b7534dbe889ecd929d488e04e41549. 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/USMH92310789.
I Believe (Live) [Live From Cedarville University]
Amazing Grace (My Chains Are Gone) - Live From Cedarville University
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd290b9749c66107be113758227682cfdf5aada31d5ad2faad21dcc32bb6a89e0. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZTAX2406149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad79e3ad8f94916fe77dd9769f491929de5cf84d354fcf007d4e749c99cb5ba9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTAX2406151.
Because of Jesus (Live from Cedarville University)
The Lord Will Provide (Live from Cedarville University)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89113645e4d8f3616b0a8d1088f1edb75397093053a23a145f9ae5fe453bd913. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZWFH2564419.
Because of Jesus (Live From Cedarville University)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7d788481bec2cc5e36cf924fa5e2c2eaaac3ac0faea29924633cd230a03e6c. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/QZWFH2564420.
Revelation Song (Live from Cedarville University)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6907e4cb1ffdb581186b3c905b5cea4ca14b7677aabdfa38becf26d6267365e6. 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/QZWFH2564421.
As For Me and My House (Live From Cedarville University)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5bbe0b92f836173866634b77c78f6bdc16413c1f2c703c04806fa25ab5086e. 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/QZWFH2564422.