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 0x4eecc96358d4f28a36ccb438b54e4237b727674c828435eca1c3f68f41036079. 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/ec8d114f-513b-4b38-a33f-aa3b70bd935b.json and https://artists.proofprofile.net/proofs/artist/ec8d114f-513b-4b38-a33f-aa3b70bd935b.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 0x5c39e40c4ab126674645bf7e13a8b29ec5058e77ef44b6489dbe7b50e7aa1c93. 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/QZK6P2057949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff3fba5c82cedab54241801f2286fdd26203bc6c76ee99d27a353cdfe3b3fe4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZK6P2057950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93575baa6d8c24e1beead009821ee597d184014d4c9ad4e9c839508cb6bf6e0e. 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/QZK6P2057954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd472474916123f14b470fd50fff2aa2358c82514efefedbf732e635714c1439c. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:43:00Z), 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/QZK6P2057958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcbdb5240563942f2484c8678f333dcc7ab8cbebb2b5f390ac9aae0427d0fe2. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:28:00Z), 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/QZK6P2057960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3a3ea1f8eb0c01eb9e80fbc96bd5b46754dc78845969f7b6f0d0c9703e6b3e. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZK6P2057963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0bf9ae261d6109a82dc0ed214d86844f5aa57b74824e2190d313279f7de20d. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:29:59Z), 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/QZK6P2057967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bfa2c3a8db48b20284ba3e258f7d9be137f5e8cbc26c838a6b895d1c679fec. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZNWS2124653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2bf29be630bb64fa85ae9e1e91c444f623b2e89badff789c8bed66233bc606. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:30:34Z), 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/QZNWS2124654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3b87df88bf1cedeef77e1eb9c2b91de21f988a3230beeee4df0572174d5c4c. 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/QZNWS2124657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa784d2eb8405b672aff167c12c963b451b8e96616d884c6482f275a4be2c6867. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:06:01Z), 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/QZNWS2124661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44358c19c3323667b98a4cd12edfa5005df869303c74bc5cb1b346bf205186a. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:23:52Z), 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/QZES92291944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde40062111119f9e68a6cdf78643bb09112235c6b692cca33cce04107cbb3538. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZES92291952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22441fa7e2ff403df1da1680b30167ef53c5adfa6feaa64a8514323fa720bb7a. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:52:29Z), 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/QZK6G2295519.
Rims Keep Spinning / ...Til I Find a Way Out of Heaven
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725b0f474bc17849a2b65fae0c3d326b9b0d34498356531340b31f90e17658a0. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZFZ72399445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a4013e80d4f909c4d3dee98fd926eb35e6e6597c090cc5fa79b4953d533c36. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZHN42388393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6723d6c2c97ff12e943ce07efcd264fb286f1f852f774477eee8cbb480a89b49. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZWFJ2346765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84aa55c6787e248ff0d48babd6d6e1a52e33ad7a62d2ea24614bb4f3effe1d4. 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/QZWFE2428519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bada08205877a147d9617e6cff7aecb57a7f44ed221f759f15ed0c503e9dcb5. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZDA42575264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e82be59577d2ecd9cc6b870ff2ee1f83f6ad4eab0f814631dbbad07945740e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZDA42575265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c62fe333a8447bb8e6ee096dc9c2404130dd44d917b809ac93fa68d057a4dd. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZDA42575267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bdad70e57de401fec3ad2ed6a5b9c755a8e5421232a482c65833037311f809. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZDA42575268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bc8cd1a954473bcd706e9ce3b2ab6777081eddf327d92ccd7dcaacb650917c. 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/QZDA42575271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb596fb06d9c60a0f07a57dbed1ac73ba4c6e045f97b8e3d7ce7631c37f675fbe. 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/QZDA42575272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307b23a62bd724fe2aa05d119d4672db58f3f2430c98f2a086617397df342676. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZHN82552305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7720988685136b5d51c30b3243493174728eabf439ceae994a110486a89a009e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTB92519285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb007b171b31adfc824be8e32c8013791543ef57d21a31505be27007a0736c145. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:59:14Z), 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/QZTBF2588858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf03a70a08b10400ef914271a8f719eaacce6f1bd0e453a781d74e52d5ba3e5f. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZZ772507937.