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 0xd6909088a1dbbfc16f48ee0ab490b84a27951e70ebb74494863c236209882b28. 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/531ccc81-5dbe-484f-81f9-346632e21c9d.json and https://artists.proofprofile.net/proofs/artist/531ccc81-5dbe-484f-81f9-346632e21c9d.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 0x12ca3e777c8f79c948161a87fffe23d95ea38cc32c4dc3b05a39468c7ce685d7. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/UKR6V2071143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ad132c92ff9d23acb3d2923055698d8ec8e3bd3d932b558798b0dce1814ab4. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/UKR6V2071145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd8a04a3753ccfd3d8d342d509ebda65bea27da7dfb5bd092f52c7545df1e7b. 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/QM42K2308464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6aad53375da690b97115700f70850460a8292465e0654d452181c3eaf1c1d6b. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USA2P2414800.
Creationz, Vol. IV (Selected by Switchcache)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f23629268ef53ff1f288c6b4e0e46105b60cf2f8329323d37708d78cc4844c. 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/UKR6V2030646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c03c6ee0e0e6c451506cd0a1bc46948d263ceb5f58068d516f10ecb41dbca0. 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/USA2P2033192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d7e5ef13afb43cec5b3d33ad3bd482a38a2a20135482652fb373bc48714377. 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/UKR6V2076406.
Northern Mythologies - The Gate to Valhalla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeda721e8bc6d1f1a9ac59f72bc552632452881591347004641dcabc3df192b3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/UKR6V2271795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffb60e2f1319165e5af39c030306425b3f801d8b5049bc20e955040e87e5eed. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEAR41955577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d40676f05aa431c4a27beaba93c890ed741a03b5a7c7c8d01aaad0424db86b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/UKACT1948453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7526ee062f367a8f55e0e054dc995ad9e8abf3ff1ab059f73f2c618bd43a2bfc. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/FR9W12307676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ece1ad2880e95d3442f1b8fcc07a78558e0e98495001e2ad5fd614c53b0248. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/UKR6V2077400.
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
Psychotic Episodes (Selected by Psycatrick)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3639a9c4d4961ee859a43709126b06b238b99f8b12a5fd9a70a51e653adbcf93. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/UKR6V2183187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111740c7c68e75438a0196877cb576dd9744b1136da1dbedd68881c5b02ed2aa. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USLZJ2041313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac57a0615daaea8bd8486e768be981540daf170aea0adc8038a93fd6cdb348d5. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/USA2P2212719.