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 0xbb6cb51add2441fb50940042e47df972eba22b88832711b8eda50102faa3f391. Chain 2 (Bitcoin): anchored in block 953973 (2026-06-16T16:37:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2adf477c-a14f-473c-a62b-8945fdc347db.json and https://artists.proofprofile.net/proofs/artist/2adf477c-a14f-473c-a62b-8945fdc347db.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 0x10c204ca15bfccc7c245de88203c989b031365c2d1b5db173a88189ce98fece7. 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/US25T0410005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2082ae87c0d7e6e0eb63d439e760f972e4428d0ff08fb8a8b35e45e1c7b612e6. 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/US25T0410018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3e8292b98db114bb32c42ee97e1c57d4856ba238129f9b68de1e0b9167344e. 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/US25T0410019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73674fcbdb588cdd47c960bee4a3c2a1ca377cc660d85efcf80d6cd5b903b85e. 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/US25T0410022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3822e95b59e9d1a0d569a8a5ddcaf04d9d4aa904552064b68fd3d5971096e8c. 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/US25T0410023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b3792f5b7efef300f04781062f134312c11a62a57133b8f547c6fa1ca7f322. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/US25T0410025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b878ee0979a1a039c903cd21ce08ed3734672d82da0077d0fd701319e5515c3. 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/US25T0410026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdff4418e2a6f7a97f45ea726fbc70279bda0d9f09429694d4c7dc44ae6c567. 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/US25T0410027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971dfc4ed7bb7e8e33045f2327344470df62f70a6d51ead9c64c058fa2a741dc. 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/ITG370100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50327de9fd92bdb83b2d22b744c4ffabcee285ec5199214ce8f2a652ddf60790. 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/ITG370100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296789a7472c36d48572d83b17af37bfd8fb3fc72f7e5a5b6cf999420cc7bcf8. 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/ITG370100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb845055eab9fe1e3c63adaa9b7048844de7e97da3af7067b76f28ee2e8220d11. 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/ITG370100031.
A Song In The Key Of Sex (unreleased demo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d4d3ab9066fadc1c3c0fe5c81bc3b218eefecd50c1804c39be61f64c056f17. 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/US2V60520203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aad81b4e009b2a90927ebcbb28c6ad65a02f49594a019ec1e8d719043abdaa1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:49:24Z), 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/US2V60431701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61036f23751e75d564d83b648ba96e8e0e8cfb5d14f77eb218f48362fc5380b8. 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/US2V60431703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22daef6d229fb534814af7f8cd704c3a60ee049dcc01e42f6f1b6958cfb7fba7. 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/US2V60431707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5118e8f3a7e72f65e0ea62d8ec95d61c1f4c2f355dbc754b55be356e460a65. 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/US2V60431708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed295ffcb57fa084959b90b09cb8e2bb6ff4614dc9d4104bb261712142a2e0be. 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/US2V60431712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761880873a722f0cdc1939f6a6e0b86cda56f4f508efaadc4d6839359c802efb. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/US2V60431702.
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 0x90a56e76bd5a790d1a766067d51097c0efae43f781634cbeb07c398d79729dc1. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/US2V60431704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73673f83d791f58ee47635284df1e7180e63881f5710cb6a4dc86a619d131d60. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/US2V60431705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbcf0932bd2876ed10cb6ae004e5cdc602801ac29ef7021b332537054493637. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/US2V60431706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2913be2b0def294ce1da2e8decf1aa823c90387f1044cecd5e5ce03e4e51243d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/US2V60431710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68bd471104b373358307cab75dadf9b2df338aee1977b10dc3acc11597042da. 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/USHM81737455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3781878bdbaee69df75f6d547b3d381d58ac2a4f45c044a05e269f186bdccf1. 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/USHM81737457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc5bde35d0332b665099252831689c0fadbf86dd627c46b45e3edc9037cdf68. 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/USHM81737463.