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 0x9813459b99b3f266d214ff983286e6258ba93e1776cc9786231c397530641e99. 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/f58dd640-69a0-4da4-8e76-58006c169725.json and https://artists.proofprofile.net/proofs/artist/f58dd640-69a0-4da4-8e76-58006c169725.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 0xc059f381fabeb4d5b7548e2420e13395dc0555f6ad4f6b3b602abdb90601a20a. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T13:24:39Z), 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/TCJPI1943603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04dab07f75d195ea152f44989ed0f24efdfa64a35404f1fe826aab52bb21b53. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCJPI1943604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3552615c718f0f7ac039dad7e77defb9e00810f02593387919634652d92b229f. 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/TCJPI1943605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6439c6c8029a0d5c4eca575d959ac9252d7ea32f59ada1f532fb18ed2063de. 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/TCJPI1943606.
それでも釣りに行く [feat. RAW-T & 遊戯] - ZOT on the WAVE Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0df468f9e6f7a9dac0725abfa8f3ab179cb4036ebced58f888780a908f95e35. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/TCJPI1943607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918901cceacba6f1a3f08ca3c8a75469c4f1c563bea97892e9722def262dd0e6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCJPQ2101960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9464d92990dee3610d799cda6ac10d550a6ce954eb7153122e65a7030edcbb0c. 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/TCJPC2437791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0183d23d2cded6d14540c74f9cbc88b016fe819242f145dc12f2e4fbb70f6486. 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/TCJPC2437813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a0c05963921d0acd6d90a54f77af0edebd21ccbbb52b6105575a269da18049. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPC2437827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e931ff3195880320e4a9e3b131c28f8efcbac8102da4ae9979f34a6b131bc7. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/TCJPC2437842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd628f894ca2b2d266d7c660c31ffacb74978bbaae659ffdb0bad118d3aa4b255. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCJPC2437853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5eaae02a791be6b92e590ce0bfac3162a44fd930b56d981522a1f6f5eff7aa. 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/TCJPO2165050.
Manhattan Records Presents (DJ KANJI MIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2dc1fba3bf3978b6a17d824497a541890a0a3d7866efa9fae3d9e55a319a6ce. 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/JPM591001507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9f038a893f2cb23fdb3954276f2964bcaf8531afd81ed14d1ab089a717e497. 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/JPS809909113.
SEX MONEY POWER (feat. eyden, Y'S, Candee & T.O.P.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67a6ab200b3e2a1b4adf84b87372e2f037dc38bf72c4c1671ad7f2963880206. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TCJPB2481101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdbe27fdc51cd0ea8c4b18749378ee95615ed6aa21ac5d8c9cf97c19353ab64. 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/JPM591000207.
KOHH Complete Collection 3 (From "YELLOW TAPE 3")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f5d56cab1ceea76caad069d0b64323f690288f783ef8cc6b355796e9f7c9e5. 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/TCJPF1751291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3376d92308f633723a5ce8bdfabc850749b8ed6ca9987682ce6498ad05124e. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/TCJPF1751316.