thumb|The Vampire, by Philip Burne-Jones, 1897|alt=A black and white painting of a man lying on a table, while a woman is kneeling over him. A vampire is a mythical creature that subsists by feeding
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 0x38e797c4e2afe5082d9da1b2c18eb200eba15abdae3def81698e20466db0a458. 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/8b7e8c84-e58d-4810-9072-a6eb9829c00e.json and https://artists.proofprofile.net/proofs/artist/8b7e8c84-e58d-4810-9072-a6eb9829c00e.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 0x02f2115f6acd850d49b79ccf319a779b54adc378916036a6509efc639d9242f3. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZPEW2595663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae27eb43cf854d2e126f73746248252b973e83d9336d6f894906233943f6039c. 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/QZPEW2595664.
WE NOT LIKE YOU (Brazilian Phonk Alt Ver.)
WE NOT LIKE YOU - Brazilian Phonk Spedup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d25af505cc97ec945f81a288aa32672115b8a4c7021258de9c58a7564498d33. 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/QZVEM1813891.
WE NOT LIKE YOU - Brazilian Phonk Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd7a9823cf6b25ab3ea67a2e294a09bc69ec2b2fb8fa664d03f647c6bb2efcd. 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/QZVEM1813892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e720b7d25df1035925b5483ee0ed5d1691c4f6ec0b7425487e187b65a7b0758. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZVEM1822011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbe3344a2b51bd19a365958b55a16d849072a52fe95249f835734c28a75cfb1. Chain 2 (Bitcoin): anchored in block 957632 (2026-07-12T00:10:15Z), 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/QZVEM1848711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a94f834c072742d901e8de77a3d16338e7bee7871f8f932521c2321c4189f6. 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/QZPEW2520966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6643b2f9f2e38c178e663fe4f6e11453556792d8aa2f72fad8d3d0698e6f954. 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/QZVEM1861353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597d77db513b121ed5a495f064de28a4538af87ceb6e65ae5611032003516b11. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZVEM1891561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147d5f55b4679f8436777accbd1a7fe366f99db508770e0229174e61399783a7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZPEW2502637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83caa3a3f43e5f43a411d2809b8398cefecdf16f37cf32647ad88f8ab6a9599e. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZPEW2505150.