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 0x70b463eddb47c91443aa5f5b583cbe4cf4fd603f72e6a2652fc435a91fa5a4e6. 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/f83d9c88-ce62-418b-b1eb-4081fb16b0a7.json and https://artists.proofprofile.net/proofs/artist/f83d9c88-ce62-418b-b1eb-4081fb16b0a7.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 0xff5b4d1428e7c321203e6c3c2c5afcf8285c0f5894af470f9015e302d4247f18. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USEE10251428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3a6c2e8eae841fe82a724908ff12cf7f8d9ee3497b07c0a44c843b25cd06f1. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:44:00Z), 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/USEE10251431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c9ac7ccb736be769a5bcf161569412242546e3f6929c40ce2ae22a9ee385b0. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:21:40Z), 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/USEE10251433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf369dd62abdc5e299cb6cc946f93bcf65ed227c14877ecc82d0c75ffc1d9ac. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QM6XS1902412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba7caffe831e277f00aef2208a7b91b5cd1b70500d0f578f1fc4983ce2f2489. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:32:02Z), 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/QM6XS1902413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7f17a546ef793f86e1fad394b5bdce49ecbd8f80c1cf423db2c1cc6458854e. 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/TCACB1427748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2406bedb204a9d4620ce78371e87f71f92e06530c338369a9c8661ab3491175f. 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/TCACB1427754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d76c7f015422198278b2a1d4bd00d1f8f08c7252f2f4f7e443062000cf44aaa. 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/TCACB1427765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f269a96d09f09684aad06931b81fa08d565fb9c4b3fa93e7cbca4d1b92a9e7a. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/TCACB1427766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaae2ef838da2a47981defcaaeaa858b88d5c90608c12dc43148c7b5d8404164. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:05:31Z), 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/QM6XS2202417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5aeb0dc225b8c457b9ead7b7350ae8c03917db5bc9bb81c505d791d45dd260e. 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/QM6XS2202420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682599f43eb1d11cdeffff7d2fbee047f9a2bbb93f4182e6d49773fef88db121. 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/QM6XS2202421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e18c6f7ff80ca14236241cc78bc3a788273d614fc609cc24d3ba8b5cd2ac15a. 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/US3UP1700034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4c99295609c56ed4dc213878892afca73c9750f4c96a3396b68b43c9d8606f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US3UP1700035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef87fa98468ec80a21168fb3cc950df34db847672549d932e59d13c70e6340a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/US3UP1700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c3ebcc3e0699e14c842143ba6818a7966703bffb299356251e67c373720e40. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:19:54Z), 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/US3UP1700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012ee3954fcf3d1f73ef378a7cf2b3f259deb2c8278cd39f46dbcdd89a6d420a. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/US3UP1700044.
Wicked Sensation Reimagined (Japan Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1771c6b3f4d90ed3b7c2ecbbc842e9ae014bf18983701d3cccddf096df930bc. Chain 2 (Bitcoin): anchored in block 957625 (2026-07-11T23:15:09Z), 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/USRH12100466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfea9c8482b83f0172dfcbf07e47b5cce59e7950f4f58ab69f9999b1af6853ec. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USRH12100467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67e43da9ddc49abdbbc718682d377a6187482a1d4ec5953adeb1db48541b22b. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:18:08Z), 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/ITG272300607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9e8bfe5f7a9acd39c06425ec8ca1268ab0b9b0b0e0c57f95e2fb5bf0a38582. 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/ITG272300608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17fc2b1886768426847c57713e2d2fea85d2498124c9576285eee3b34ae7f64. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/ITG272300609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba494fab7b587a439091baae2adf2cb10f126e85efba7b7e04a4ec3328dfb53. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:43:02Z), 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/ITG272300610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ae817133efa3928ead92973c9b1ca9d149658d7cf6156401574615b7b5becb. 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/ITG272300611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f11ffeeadc727cbab984dba3371d7015b4fcad1016d810e87743152c44680e. 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/ITG272300612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc4e7fd23c2bf598d163d9482076dea09994092ce0942b37d406ac92ac6c00b. 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/USEE10000554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6fe990b3c0aa0bee5aa071d6c81faf916525d6cf767a3cea18897afdf81925. 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/QMFME1305143.
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 0x009b14abd91208420fbae7802cf0aba627a6334fc2f9052245208c4b2a3e89cd. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/USEE10251429.