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 0x77863edd345153a6a852e75cd80c515db21af09270d3e7baa4e8190b1cd20bb5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d847714e-20c1-4b57-b308-98b921e5ea8a.json and https://artists.proofprofile.net/proofs/artist/d847714e-20c1-4b57-b308-98b921e5ea8a.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 0x598adbde565c02e497b056aed8c56e032b48497f4ef7d28604dc785dde587fb8. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:03:08Z), 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/JP92Q2301840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b1f96a813a01d40b7c66fa40a9b9724a62ab81d95933f384dd95c32fb4ba5f. 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/JP92Q2301842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d8600f08a984c4735221842b31164d6053770bec9e0c259087c1e9dc092139. 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/JP92Q2301843.
ネオンライトの海を往く (feat. 初音ミク)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842b194a84dbbfe17d16d0ae10e46d810e3ed43502eff38685ed1a04186a11b5. 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/JP92Q2301846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc056c50e07a8b702c61fc1f996b8058344ea186c8ff616f6aed2af9f1d60d0ea. 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/JP92Q2301848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce3951d8c9ab5ae3baaee2f38df8b30e5f26d2bc703fbf8faf3b4469f6f7b2d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JP92Q2301453.
Brand New Day (タケノコ少年のセカイRemix) (feat. 初音ミク)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa8cd73ec302e82d77785f383c44c94a7cc94bbc311d84b78adaf216d947ef0. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T20:49:13Z), 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/JP92Q2301454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24907db205de351c73df36e96ec0dbc4305d611e8edd656024ac075aa1429d3a. 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/JP92Q2301455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b50e1355593f38d6feee803321b48b0358f346a1dad442fb13c34bb055f6aa. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JP92Q2301457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8359c03230ea9999e85a9cfc7d812b2b513f43574990615918358bcc6dab19f2. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/TCJPR2263301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8637c189a80ce5ecc4ed5ef3ba9a3f9d6267790a90f0c7848eabb8b8a8d6cef. 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/TCJPR2263302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7441ccd607665a05b5808b4afadc88870c172dada9efdc410b5269e161ac67a2. 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/TCJPR2263311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f57c860faa026467bfaf3d8e0ceb3bd06c7eb91fd4f55a524e5cb03cd9a056. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/TCJPR2263320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1ad48acf11e5d09da0765e3c416fbe5182b4a58e6e0c6b3b1dd69ada4daef9. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:36:50Z), 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/JP92Q2301647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c531369f05e96075cb971123601f4c0edd0aeed659cb0a91417a2456b12550. 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/JP92Q2301648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56898f75f0101b7ea41e72de2c940bac6c9948dbf3601012e35fbe27557ec5a3. 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/JP92Q2301649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb926f10624c2226e3347a368f99275acb9d43b66d098f2396c2d96588586c0a3. 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/JP92Q2301652.
ネオンライトの海を往く（市瀬るぽ Remix） (feat. 初音ミク)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf50629af0cfaec6fb7502c8a47c9288c5cb7758947fda47a79ef65a6e07b8bb. 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/JP92Q2400750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf606c278b03991523f4c4c8a5cae1f4f07327392f84284f51c70df985683beb. 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/TCJPY2497280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ba92362cf592d9ef5de69a651bd6c4bb704cb4f7174c2e4c33bf97a746ba01. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JP92Q2302111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd227c337f90b59140a514ce729e1773ffe04df611aa0380242e60a486a7495de. 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/TCJPY2304805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03a264698c69c54820e61946097d89e5d100d1a964278e755321ee26097ffa0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JP92Q2301445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d227af1e819ab6a8d1f4e5ce6ddc6f48f17e804707eecd4f0ad876dfeed7cd9. 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/JP92Q2200393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63acd6ef563a145d008077040b2b7ea48544f4ae65cdf77a8377d6489f13cb01. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:08:06Z), 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/TCJPQ2152107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a01deab428fd587dbf1bb802eecb61c3c875fc748b9a5e75db9e842a36935fb. 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/TCJPQ2152110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495d53d5b184459cc628bfe92c4e74e84f35a4eed342a37c60b3a804ec6eb6cc. 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/TCJPQ2152114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf657fb873ae9892cf0946ab0fd887c42879cb3c10b574a5a96c45c1269181e5. 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/TCJPO2151810.
Conect colors -Dear Dreamers- (feat. haxchi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f0a7e015a6e832e600306ea17f3a2a490cda501a44655706070af03ec0af89. 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/TCJPL2003871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f10fcb4fe61e6b59fb6d285bea0936b496a80b06129f881b35feeb65d7255f. 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/TCJPL2003873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd446e911a341c044db19c50ef34790960751db6671d23a5366f9df9e6f0fdcf1. 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/TCJPJ1961002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e21d7dda6295266e1cc31e8007057bf62ccf645b0539821048534b6ec62cdca. 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/JP92Q2401123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57335d493339dc4c1c3d6872f2968653131005fe1dedccbfd2266db0c42d9a2. 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/JP92Q2401124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5e3d4b8b48ee74b38635d811ec2448e57eb1822f964ebb565afa8234bcee88. 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/JP92Q2401126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56101baad47621bc769979dbd934599a3a462a4d6f64dd3bf12d6be81b3ab416. 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/JP92Q2401286.
おぎゃりないざー (CosMo.B.S.P.310 Remix) (feat. 初音ミク)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257cd9c1b6bea101b36d6e79124ec25df43675602716ea40aff2ced397bd245f. 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/JP92Q2401290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb429aa1b724b118af132236c36fce8416bc460d6fafd8e44d54deb402956ad9. 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/JP92Q2501709.