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 0x9c01ed99f00f103230b44149bf50e5cc39aba87d15a324e5be5ee5fda1ccc7df. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7cb871f0-3e0f-466b-af94-e52f1bcbca19.json and https://artists.proofprofile.net/proofs/artist/7cb871f0-3e0f-466b-af94-e52f1bcbca19.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 0x22c3347760417f4a066437c0925eaea4e608e8e77e3c66ecaae95487a764b01b. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZK6K2230573.
on the deathfloor (nightcore4totalsluts)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058839305328aec92e89f716e4f41ffead6d0146443b7e63446575cc41b2b2c4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZK6K2230577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05526787ffb02df58cf7288730e618b00210c2c86d47f1cf88d1026b5157bf28. 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/QZNWU2105709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c2c09cfb1e2f2577270a9cfa4651beef2acd5c9fd5613b7b06128acb5f4862. 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/QZFYZ2211398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38854e2f01a6718afd9ed6bdd073561fbc2b68e2a5f6281b54c8d5d935e13a81. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/QZFZ42297279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8afa1ec45db925ed8fb5d57379681a07b02b2a2dd41977df25178c68b2ab1cca. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZHN42236194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828592e4578a3616710d329eff9bcae97cef706ff610c9961bb1684980f60d48. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTAX2263488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14e6cfab9ebb361ab19b2900f6c6d852ba3eb7d1c5836f02807d5f6291d6621. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZHNB2324386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b51d6a55dc92f6b6eeaaa441992c3b9c890f25f37288a7a5d5690b53c5eecc6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTB82345381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd608251121aa4e8cbc5da3498780b30dab21659e8e594bc331356a7fc60872. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZNWS2268327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5093039e2f7c65a22fd7b44738c16ad7752330d1b8c7fe0efd5705039639bbf. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZWFL2342403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3062c5fbf96c7990a061d9f14decc1dceccb7cd05af0ae66e3d800e6eb0494a9. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:38:50Z), 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/QZK6Q2439532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f44cc395942cf400c843fd5ca6d839620e186a74b0201d0f7d1fb4ec58bed1. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:28:27Z), 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/QZWFR2409223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc840c6a5f9caed380c213b8623b79017fca48a53950235ba6c5202942397c49a. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:26:29Z), 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/QZWFR2413532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bf11990eba2ebaed242905cdae33a0131dee6e21fcf6df1e25d7f0d5c3c1b2. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:51:54Z), 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/QZWFR2413546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd66ee40b8b359c1b3114ada0ef6c43f90e5290ce0401f4c5862a290c7aaed8b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:48:43Z), 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/QZWFS2480594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef44a7898c5b6ea53132ef3645caaa5981f81d74a2ff2012da7fb446eafdae8. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZZ7K2477756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2d5fa4e5e63c5c91065b2f633c9a2e7e8f829647fe9633b40dead8d241ccd4. 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/QT3EX2494478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1929109d5395e18e106d4f88fd529d31b2b259c6f77c3a3e4b075d9d1ac4f2ca. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZDA52595972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765ab0e2011040fc752df00c6683f9a86ac5af42b44ad88af88f832d4d1b33bd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZK6J2545424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42be83300f9611c1c17895a6499da911b279c9ee5229a7e81ca7e541307ab302. 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/QZMEM2542852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be16eff199ddea1ad90d4db9c78fbbe1c21754a77e152d15e89b9164d07eae0. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZTAS2558130.