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 0x7cb2c39ca6905fdeee22b92677ca20a97580d29a8a5e1b537167c06d1522b80d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/170f0a24-5a6d-4f09-8748-a99c7ec96c24.json and https://artists.proofprofile.net/proofs/artist/170f0a24-5a6d-4f09-8748-a99c7ec96c24.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 0x3f69b748446191a255824752c68bb4b299ffec21b3b7265b115cd4c0a744b1e9. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/JPR561900348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96a5ff4792fc7bc086ccf407e68af8b63f86466ab901ffce36ebf2a1ca7ae87. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPR562100269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa491a000721141359c7c3f1daf386f11c0badee3883225035cd94e45237163. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/JPR562100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc78335af7dd438126a9cc48280f30122252ea0c2421bc2a4bc559303b04664f. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/JPR561900284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f434b644c25b67885b1e0c6ae67799bb7e33f1c150f12b03bbd98e640b6794. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/JPR562200153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01607acb41243439aeda44fe56879aeda999df6d37d393bd2d4b30c30f88420a. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/JPR562200154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b497c5360c0ca7e5f02ca3cd8b4d12950a16091145bc8f67724464795f0d5cf. 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/JPR562200155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75810985e3cb6a6b2e2828d92020a78fb8313de292f7c54b7b8e01f65512b3b9. 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/JPR562100268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa491a000721141359c7c3f1daf386f11c0badee3883225035cd94e45237163. 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/JPR562100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc78335af7dd438126a9cc48280f30122252ea0c2421bc2a4bc559303b04664f. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/JPR561900284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f434b644c25b67885b1e0c6ae67799bb7e33f1c150f12b03bbd98e640b6794. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:29:31Z), 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/JPR562200153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1205c10852604644037096cc3481b7127a7db8c13f6decf619566d4347c3b438. 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/JPR562200158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9087e8c79c1feb4be67f9b30d3f3e774b8eb6f23995a60da8de11e0ce1352d07. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:35:55Z), 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/JPR562200478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9432e59d6d2573a6f9caaf96d2965b66ac9ffae363f34ee7fdc48529c74da2. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:46:54Z), 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/JPR562300210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11d0b65350ed281cfed6480da7772a34276406ad08d4891d897642bbd5e21d9. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/JPR562300211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11d0b65350ed281cfed6480da7772a34276406ad08d4891d897642bbd5e21d9. 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/JPR562300211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb767e8aaacb93350431ea4f07bf6f8bfef19c634f2268c90961178006e1f661. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPR562300334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a9f3a5edefebdba1d3a0559e00abb69ee6dba3bf7ea3e278179cf44d6f472c. 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/JPR562300408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7eb511ce74df525a92dd19476fb697ddefd242598c71d1c12782c184f9bd006. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPR562300409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb767e8aaacb93350431ea4f07bf6f8bfef19c634f2268c90961178006e1f661. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/JPR562300334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51682c56a3c0eb1a844178e2b072ea18d9931cb6f98eacab1c018e96e194f539. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:45:10Z), 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/JPR562300588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9087e8c79c1feb4be67f9b30d3f3e774b8eb6f23995a60da8de11e0ce1352d07. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/JPR562200478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f69b748446191a255824752c68bb4b299ffec21b3b7265b115cd4c0a744b1e9. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/JPR561900348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bca31fa0f55b838de35d2c4e4f6355b0915abf9512ee459b6f32fc280c006dc. 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/JPR562400420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156ff2c45636882625e6775a98edb26f38afde25142cdd92c3a8f0d22dcdb098. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/JPR562400418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96a5ff4792fc7bc086ccf407e68af8b63f86466ab901ffce36ebf2a1ca7ae87. 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/JPR562100269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b01ba3dbf83bc7903bb22e0cc2dff015fa66171582235bf8f8223fa66c0a7b8. 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/JPR562200476.
D4DJ Groovy Mix カバートラックス Extra Edition Lyrical Lily
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e7d09ba5a604ccbfd052e256f4a34800173eb4b4af6ee5f7df6de4e07af40f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPR562400422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f903cc977521658481df3e0492069ad4f7cbd0c4297a47db47f1997aa04887. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/JPR562400423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb329758a30ee76d0532aeca31b7e5324b7340cc2ad194f8d46cdb9e0554ef1. 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/JPR562400471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7da2ad5e30b4b1216a0726d6491118af4003d576ece560cb5a5e2e25f31f9d. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/JPR562400472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec95c8166a9c985869db301a30021b0a7b21c6c7017889bd32b82fd8b9e6e8a. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:51:50Z), 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/JPZ732500304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec95c8166a9c985869db301a30021b0a7b21c6c7017889bd32b82fd8b9e6e8a. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/JPZ732500304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0efeeb8ea1debb8d95454722adb9c8ad80f4f5730ec140ca2766725e14f6f3cb. 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/JPZ732500303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda14ddc60761d24a711cd85802dfb1c13c482a72ec7e9253ab430ed0e15aa74. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:46:41Z), 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/JPZ732500340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda14ddc60761d24a711cd85802dfb1c13c482a72ec7e9253ab430ed0e15aa74. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPZ732500340.