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 0x4cbb2f6df1c2e5dd7eabca94e870b78e061d8624e09d17e83cc5a9a7d4aa1575. Chain 2 (Bitcoin): anchored in block 953888 (2026-06-16T04:55:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0db0dc04-bd9c-4f97-96a0-697e97a43a3d.json and https://artists.proofprofile.net/proofs/artist/0db0dc04-bd9c-4f97-96a0-697e97a43a3d.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 0xa30c1341c5c5242991dc36175f952f3d13f3f5cd78a1d3c71c773f463704e343. 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/JPZ921811949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d69df825bbabed1a9a2a26a8446d2b9974d9fdce37d6fb182b9c7f714dc0e7e. 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/JPZ921811950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7904103e54c98978144cfcfed96299d96c4563ceb79672883b5b2c2462d45a. 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/JPZ921810759.
ラテンでレッツ・ラブまたは1990サマー・ビューティー計画
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f975ef1ce46b1ca38a5b5caf2fb8b15a0490f2caaa6a544ad3e1ec5b58945a1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPZ921811951.
MC02＜CMソング・コーナー＞ - Motion Blue yokohama 2018 Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a25e28719922beea0a725920724e0968c45801fb08d815784fa26b34ee0e85. 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/JPZ921811963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f7461d4af5775d5bb0b00f8dea4a4806cf0a85e27346649043817c378baf17. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPZ921811952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa64f362cbad3a1db159e33a2d45aa1a29adae969cbfb48e7b886c9140fac505. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPZ921704079.
ありあけのハーバー - Motion Blue yokohama 2018 Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea9ff5acbd89b615561456af4ad3b2fb0f8b1516a019772fae36fc231aa6306. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPZ921811965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e71d7ac1f5ab4407f23e31bdb6cff734dce81f642ce467c1d23b38e8e7978c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPZ921811954.
チェルシーの唄 - Motion Blue yokohama 2018 Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612cd7521b3f26b0c47a649f4c6782e9552e1de41f23171821325be30607075a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPZ921811967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590f3216aa1e1f10580bafe4178cb07975b642227e90d9891e78c5688d145d6f. 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/JPZ921811956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3600c023f0af010cb97caf7088622cc8559062ac99237f4055196d05ad9bbbc3. 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/JPZ921811957.
中央フリーウェイ - from Billboard Live 2015/11/19
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f15225c9666c834859ffab3cba4799d525c44ca20f899eba94e597c5810737. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPZ921811958.
おもて寒いよね - Motion Blue yokohama 2018 Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bd9504236a87ded224a867e47690dd8391cebe77f2506c46111c5d610c67b7. 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/JPZ921811975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeefebb5ae9d8bc46617c2c394943f917fd14c764901dcff2f1ea8c4bee58fc1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPZ921811977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf50efe019278005bc7d05f85dc8f92a54541faa708359c859a376d57b42aef. 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/JPZ921811979.
Love so fine - Motion Blue yokohama 2018 Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2d76502d073d6a6ddc49fd3a2e4eab8176b06ffc05a0da6bf3238802071ff2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPZ921811982.
きみみたいにきれいな女の子 - Motion Blue yokohama 2018 Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa671791ec82ef6340e19c75eef7c85e6974fcd7a0862af1ccbf365c96c372821. 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/JPZ921811984.
ピチカート・ファイヴ・メドレー - Motion Blue yokohama 2018 Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90736a4147ec53618b5c54aeeb40592e34e22f4469b99dbac326dafe1e5ee45b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPZ921811985.
東京は夜の七時 c/w ハッピー・サッド
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7904103e54c98978144cfcfed96299d96c4563ceb79672883b5b2c2462d45a. 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/JPZ921810759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f35299f49172b41bdc612afa42e89bf23f1dd740747d749834c88ae0638f57e. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/JPZ921810760.