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 0xd6a6642ac1fc21fdea22edf86b980f81f709f93649c44fe7fbe9fd72f60dc68f. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4d6b59d-d68a-430e-94c9-a7b9aa199c4a.json and https://artists.proofprofile.net/proofs/artist/c4d6b59d-d68a-430e-94c9-a7b9aa199c4a.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 0x75e358d4c9d8af1f10c01b8990a71dcce99d71bb6eaa619bffa2e01d1121c01f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEZ650508658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcd64c3e4d262498d374542e7b8175c4198d854e075a38be6b568137cd26dd5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEZ650508608.
Exotic Dance - Yellow Magic Orchestra Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db2ce7dea0ea4aa942d6e0e16ef4dc48f79db5445734c25d3607aff6db4c35f. 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/DEZ650508583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4bc94be2a1e262fa9526e08419b88f5fd62af3f00ef2d123a8bdcaf1e8b29f5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEZ650508290.
Beautiful Bald Woman - Total Studio Penthouse Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292de3c7ed651bfcaadf9e99d525427339f848e1f292af6c101e8708a32a6797. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEZ650508296.
Charles Wilp Dirigiert "...sexy-Mini-Super-Flower-Pop-Op-Alles Ist Drin..." (Charles Wilp Archive)
Charles Wilp fotografiert Bunny (Charles Wilp Archive)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a84ca94449a550436f41de710407465f5d8cc562b2ebcc3f5b35067f536018. 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/QM6MZ2023888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f77450c82f587cbbe075d4cc7c7775f467bec9bf7ffaa9a6b6e4833aeac6164. 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/QM6MZ2023889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ab3032582457b7445e9856b7da1b5f3140884b005f77ea63ecfe2a54a8393d. 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/QM6MZ2023890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771a116eba90a9fd71f32b626550f45e86b65e1dc33439af617e8f576995b4c4. 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/QM6MZ2023891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b82f841ad884dfb562b41d0c22ad84291d727117bd45a0c364e4f01b03042f. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T08:56:28Z), 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/QM6MZ2023892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf827e9673ad5a7ea2242fe20a7fb60bac6a1e1599c849ec04a797b89ab5caf98. 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/QM6MZ2023893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9db50f2866e100bd63d2f80f82a4a7bb5a8468d5e4fa49b47d71451ccef59f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-22T01:29:24Z), 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/QM6MZ2023894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5242e0b0fb281816e897738a4440f02ea97ed9a224e2dbc392390b7c369c37. 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/QM6MZ2023895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6507de0626657effb1dc45005cd62ff788f4e1ec721d2248812c1f7d1ef7fba5. 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/QM6MZ2023899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8856da4e31974d44c94b9578c6f70b6851601c0edfb042cd9c0f5b2723145a6a. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QM6MZ2023896.
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 0x0170351012208d97a7d29fe9a55fb6a9f531f579ebbbd9f93dfb9bc251b99a3a. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/QM6MZ2023897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0363d3f70601a02f8f11e216f6f33ffb3db8714171ee8314c9ba9ba45d6650. 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/QM6MZ2023898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327a5e9004b830a2fface894b3ac689b49fb2fb9e2f6cc7b9bd0be177f96329b. 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/QM6MZ2023900.
Vitanerton von Dolorgiet (Charles Wilp Archive)