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 0xc67c1e355a2d7db57ce2730a8adbdb65000bc18035021347b6b70d0678eee7ba. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7455ab1d-c12a-4256-9740-1406442c1abd.json and https://artists.proofprofile.net/proofs/artist/7455ab1d-c12a-4256-9740-1406442c1abd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
カレはヴォーカリスト❤CD 「ディア❤ヴォーカリスト Riot」 (エントリーNo.4 モモチ CV.豊永利行)
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 0xc4e61eaf01b7e9697878e3b6b366de1f3f8bfec6018f9c3be3c2d4022b3e7d96. 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/JPR501717967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2daf3e2361aad289695fbcfd9dfdaddd70df0424bc11d5f64758a40feae9f5b9. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/JPR501717968.
カレはヴォーカリスト♥CD 「ディア♥ヴォーカリスト」 (エントリーNo.2 モモチ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89b06607bc5063accbae26ac4389475069eb4233839ba3ca90a3e77c1be476c. 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/JPR501514088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a57e5dc3751f83b7abdb4e903b718e245528829378b3ee69c1bea87c2c1070. 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/JPR501514089.
カレはヴォーカリスト CD ディア ヴォーカリスト Wired エントリーNo.5 モモチ CV.豊永利行
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea410d813c1b8e31c4957ad100ee8965243bf2e90935a2d1d235d8e65be71fa. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/JPZ921714592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd90fff91b5b4edbfe2eba9a92359b1532c079460c625fbedec83e17087d6d0. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:00:50Z), 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/JPZ921714593.
カレはヴォーカリスト CD「ディア ヴォーカリスト Xtreme」エントリーNo.5 モモチ CV.豊永利行
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756951413bfc14e697aaa5342cd437164de8aac3fffebf8e9f3c8e23580f9f41. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/JPR501821460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f476b0cfdc7c87e37e9f497341f6ea5e3082f8802e2de499beeebdeab78d4ac. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPR501821461.
カレはヴォーカリスト❤CD 「ディア❤ヴォーカリスト Evolve エントリーNo.5 モモチ CV.豊永利行」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24d887bf824a50373115285a4a2906e8eabbc9e91a75a5d2b528498fd6b98d2. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPZ921911181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd789a7fb494b4e11b4f0c9be2a757cab6ff2791f2ed3fb4a8aa71d13afadda27. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/JPZ921911182.
カレはヴォーカリスト♥CD 「ディア♥ヴォーカリスト Raving Beats!!!」 Veronica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe3ab5db72911864d750d8e478a420e735e0ab2d8732e46dfc2a4613908626f. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPZ922104804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173920703e54600d55505366d7713c79d4ccd862d03b02ea3c97f13094b69fc4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPZ922104805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77b08f2c4b952534a857b49f84ce496e9fdeac8c2403c4bc3e36a86eb4e8ebb. 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/JPZ922104806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e0e5a5289d0a9264e9943aa3ecd5c62a8c458a7bcd2096a3100e9fa6537cb2. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPZ921615142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdf0840910f9ad79c55e92dafc6c27a77fa89fd9c1f9e6b595a88abb40eac6b. 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/JPZ921806995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d7637b6484b43d72f49cef381e4ebd6079e00dd1d63022974de7df3329d312. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/JPZ921806996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d22ed0997ca7957b6c8535c5ff577ef1d2dd6dd4c78a1de0693ec1497734cae. 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/JPZ921809759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24d887bf824a50373115285a4a2906e8eabbc9e91a75a5d2b528498fd6b98d2. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/JPZ921911181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b168a826a067ede262831eff51f53e48efffdc13e8445e3b8d3c99f9bf7ca38. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/JPZ921512393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe3ab5db72911864d750d8e478a420e735e0ab2d8732e46dfc2a4613908626f. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/JPZ922104804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173920703e54600d55505366d7713c79d4ccd862d03b02ea3c97f13094b69fc4. 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/JPZ922104805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77b08f2c4b952534a857b49f84ce496e9fdeac8c2403c4bc3e36a86eb4e8ebb. 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/JPZ922104806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e0e5a5289d0a9264e9943aa3ecd5c62a8c458a7bcd2096a3100e9fa6537cb2. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPZ921615142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bdf0840910f9ad79c55e92dafc6c27a77fa89fd9c1f9e6b595a88abb40eac6b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPZ921806995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d7637b6484b43d72f49cef381e4ebd6079e00dd1d63022974de7df3329d312. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/JPZ921806996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d22ed0997ca7957b6c8535c5ff577ef1d2dd6dd4c78a1de0693ec1497734cae. 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/JPZ921809759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24d887bf824a50373115285a4a2906e8eabbc9e91a75a5d2b528498fd6b98d2. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/JPZ921911181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b168a826a067ede262831eff51f53e48efffdc13e8445e3b8d3c99f9bf7ca38. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:30:12Z), 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/JPZ921512393.
Kare wa Vocalist♥CD「Dear♥Vocalist Unlimited」 (Entry No.5 Veronica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bdbbab8f6b9da8a92553507894aec3558edb9f4e4a5f03fe764f4538b40361. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPZ922211394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4005b4ec374c83c2c083c7dee6bfe03efbdaa4d54ca4d547cd6518246c49aa8. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPZ922211395.
カレはヴォーカリスト♥CD 「ディア♥ヴォーカリスト Unlimited」 (エントリーNo.5 Veronica)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bdbbab8f6b9da8a92553507894aec3558edb9f4e4a5f03fe764f4538b40361. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPZ922211394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4005b4ec374c83c2c083c7dee6bfe03efbdaa4d54ca4d547cd6518246c49aa8. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:17:45Z), 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/JPZ922211395.
カレはヴォーカリスト♥CD 「ディア♥ヴォーカリスト Headliner」エントリーNo.5 Veronica
Kare Wa Vocalist CD Dear Vocalist Headliner Entry No.5 Veronica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777cccf47ee23a105613703a015df5589e6a514ad86f95496a026bc4378d0e4e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/JPZ922405294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71832a0176babca314939802379e64b98d6057f9d100364f6cf8998fc0b3f0d. 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/JPZ922405295.