The Prayer Chain was a 1990s Christian alternative rock band. The band has been called "the epitome of the Christian underground". The Prayer Chain was known for producing moody, angst-ridden music wh
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 0x0397d9df9018a3db22e26a054718321481ec09a1f0787cf1a0b21be5a35081fd. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6df19b9c-4241-418a-9f13-d667ecd9b77a.json and https://artists.proofprofile.net/proofs/artist/6df19b9c-4241-418a-9f13-d667ecd9b77a.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 0x2285415cfbf4a2d62641a4b1684f3bcdcb6cdad68aaf11c49081bda562b758dc. 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/QZMER2296402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c552d094087c1536ee7e31bdc0bc7ae299f2f8bcbe9496b290641fe9290d2b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZMER2296403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd658dead1e326d24d04417e102a5d7e7a75ea5160654da19a342c392ca076156. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:58:01Z), 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/QZMER2296404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78f0632155d1134ec8173819ef67dbdf2ced691a8aca2148270cfd176ee3f3a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZMER2296405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5880432a1e4d6b122ab3afcc6f1d8721be163680e08f491f58b3526d118c80ab. 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/QZMER2296406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1470d8ec8d0de37831f22308a4a1b1451231a6c895516b334433e4eeac3d3f6. 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/QZMER2296408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19144ee2a76a90eed0216c5b757aa4c8068ccb4208107a76ebfdd49ceffff371. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/QZMER2296410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a013c4fa8abe06810c380287dfc7b50338369e1d1b5676bf30fcdd43ee085c3. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZMER2296401.
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 0xff4db30e7a37c7a51b1dd5f47d6c4d115672cf58897234ad125d4d83f1fb9cb9. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZMER2296407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f472cd90253e77fe936dbb78b07b70d4488c4693e5287f4613524dad649b682. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/QZMER2296409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f879bb4893a80db1ed431bd35f5682b28de838a7232a9bc7ed3f97c77109e3. 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/USA5W0403977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ecae152b42ef5d901620171c6dd7342ad2da8aca99fe814e29dbc30b729582. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA5W0403978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4401bc350e34429a6401c6fa577fc81d8592ea11a6a8ff8228298da19acd7f. 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/USA5W0403976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452599dedc7f1ee6566ead94ec1a9eef03e1230e4e197e1b710061c445787059. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/USA5W0403980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bc4eb2ca1e38095bd96c84d8007ab51d3360119123106455428bb8b76640e2. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USA5W0403979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46dec43da794864cbaf8a42a89066f1c2ae82d34e51b4978ab11834e578b361a. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USA5W0403975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000cdef3ccd742735ac1896c7796b37f093ec6ff4b8b8e1399b4ae5b3dadb209. 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/USACX1002844.