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 0xa4e4af43a66b65aceae2bc2adb36685c858aed27170f208309c993a2cc154039. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44096dd3-693d-45f1-ab1b-620ea1090796.json and https://artists.proofprofile.net/proofs/artist/44096dd3-693d-45f1-ab1b-620ea1090796.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 0xb78c3f4d48bbc18ac9b5c79ed283365d63f2690509f83e8d72e4ab4490d928c8. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:33:49Z), 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/JPW462455319.
義経千本桜 - Yoshitsune and the Thousand Cherry Trees
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36133b15c99d3bb7209a15ec6f5552052bdccce21b62d25ec67f71d10a91171. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPW462455295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503ba6494a952ed1a818177bf1d17ec74e6cd5aeb8f155e1c61cb2f2f8dd708e. 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/JPW462455296.
水月鏡花 - Moon on the Water, Flower in the Mirror
百鬼夜行 - Night Parade of One Hundred Demons
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3572a8fc0384239bffb2b4a7488e5c0907cc2a8c55c41c56136177df216ecc8. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/JPW462467510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20b305324ed2f6c59ae22f778e4383856355df57e2778654802c7e5b578d1c2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPW462502799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7779dcbfa8c7f4f66a61c3050edfb6f6b86428f7d5834350e1820278baf41912. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/JPW462509793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4a71ff7d2d1e1b09b85dda9d986b305b32fa01e456098260f3448ee8abe35a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/JPW462538442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8dbb00a88cfe6fc5fe6bc8f5a8078e98656b70691f70a551a41d9c1532859c. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:22:04Z), 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/JPW462552830.
Bushido Groove: Powerful Strings & Drums
Nine-Tailed Fury: Addictive Japanese Trap & Bass Mix/ KABUKI PHONK33
Yakuza Ink & Bones: Addictive Japanese Trap & Bass Mix / KABUKI PHONK35
Forbidden Melodies: Addictive Japanese Trap & Bass Mix / KABUKI PHONK36
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b86d5396320e7fdff29942654b08f8d7e571ac19cbd8fa5dffe30b7cd2a1138. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:57:02Z), 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/JP92S2541058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f169dbfef555fe5a8f2a6510b1b489c7dc10ab909055e14aad2c0bdbd2694d. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/JP92S2541068.
Ronin Rave: Addictive Japanese Trap & Bass Mix / KABUKI PHONK38
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1fd489c8ad52655803fe48580e029268a8d538c24ec7515c80e21537260be54. 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/JP92S2542239.