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 0xfa58520f9f2f5eef97f10c55bf2012012cc8f33402cabe062dc1444222bb9b66. 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/33c39da7-bcf3-4f98-8914-414239f88ef6.json and https://artists.proofprofile.net/proofs/artist/33c39da7-bcf3-4f98-8914-414239f88ef6.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 0x718cba1e4c19dfe7096c0cbab7f4953aea132666e4edca6f27be18e542dcce79. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/JPC841201601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc441fddc735b56b9508241a8671582435288a21c2bc21791531e67e5e4ed80. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:27:21Z), 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/JPC841300302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cd767baf22b2a57b7d4593cfb94a52a595935da66b0f954cfbeb02228cf916. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:27:56Z), 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/JPC841300303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5506a108e3e8bcbf70cfc39ca2899e0dd1b43c6490b88b82da2ac976868d4e. 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/JPC841300305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87971fb1c3a544939a41107c7c71dc565d2d5f56fbf057767c6384517d9c27fc. 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/JPC841301004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2431e4a1f3fd02e08878f9482c4e183680e9705fa75f62d2c635b94507b70e. 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/JPC841400501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f6299a9d77bed28dc234d344a5a1edf60e19332f255adbc675b9262ed249d4. 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/JPC841400502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154c5de3e83d2b02eac42aa742bec0f68b3da226bb3a6b72eafe07ede3f34eb8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPC841400503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e008c4ba1d59b7cb480e6c00667f9fae3af2e875b3d8e1589c043b13327083a. 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/JPC841503001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdc880a0d1d803ae7a101c28d2533cc21d02efd15a48010d74771367676b818. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/JPC841501701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf83ea863d0fca7acfd2c518f6bdaf4cf36ea8adc7ebaf10a1b51844558aeedd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPC841600501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed303fc61059bb32441a474bfd2283d85144451a08abe8c53140fff5626c65e3. 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/JPC841900801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1e4619122b8b38fe65ca60e2f2edcd3c8f6372a8f1710aa39c10915010ea88. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:05:12Z), 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/JPC841900803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4fe63a4d9cdd0fae324eb038872dcc61cb24616dbfe8e91cde3f0d4c341e6a. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/JPC841701401.
Yosokufunou No Ichibyousaki Mo Dakuryuu Mitaini Aishiteru
予測不能の1秒先も濁流みたいに愛してる
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c9d5c147ba301a3f1006df1c8b6de582c5e53d1bd4476480bd5e3237e9d066. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/JPC842200702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4590e91279edf355a935a88e518c5b0438f63e80227815625b5e061722615187. 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/JPR502301278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4590e91279edf355a935a88e518c5b0438f63e80227815625b5e061722615187. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPR502301278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f04528aaeb99fdacb330f7dc808193f9c91176c211f13de8dddd26dfe5660d. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/JPR502509277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f08ddba3fc9353df2960397eeadfda7ac8bc6ec260b23b10cce991a5b705ce. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/JPR502512128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98384856c1487e0199a03d1129480db9eabf7668fdba10989dfe0c4215b75f72. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPR502512129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63efc9612b256758232ab13f9ed8afd6556c1bc9fe8bb62db59c4198c910d741. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/JPR502512130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a2f4e88f85856b338add53c3e3bf95cde2d78bbbc54a0e0abe911cba57b5fb. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPR502512131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead8514fc4c75b7a05bea4d758bc06d115de0a678fdc9a51d58fdc557b915436. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPR502512132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6bc0c8112340dcbcabf0aa2d9de9d49426aad9a3f1a50acc3542b5fa9b99c8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPR502512133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4eba54c895f113e5e04e83bc66629f808dacc43da319de08861de4a001bbc42. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPR502512134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b3d6f33221dbde215d653afbff9191837472aa554c9b7ab0dd72f30f71da4f. 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/JPR502512135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ffee7a95791fd21f62b79eafa85b5c54a5c64dbe08950432887c1e6be3a118. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:08:37Z), 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/JPR502512136.