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 0x5fb6cf5330d4d34a44c84e5e65edc634bc3c800c4dc82fef871a3f88795eee95. 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/97bf7307-68d0-444b-bbb6-53c9a77912d4.json and https://artists.proofprofile.net/proofs/artist/97bf7307-68d0-444b-bbb6-53c9a77912d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Don't Mind, If You Forget Me, Because, You Never Forget Me, I Never Forget You.
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 0x050bf6e795652700eeb4aad3efdc8c30029a366a03afaaf0902becf46c6a881b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:13:23Z), 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/QZFZ22192257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca954b89a6754c4e044d871a5d3332ace3c1c7b1183eead41b7331d2ea5f081. 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/QZFZ22192261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb748ebd67770ead7ccb1fe38224f1088634d8285ec946199389a544e7f039c92. 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/QZFZ22192263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b9627053f1dd3ee3acc5bced4e7cd7f907d3787cfcce5c2f809f44a10a9249. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZHNB2132525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2804cadd4817e91b80eba0ed915556df7c639521466166d85784818feb324a. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:55:57Z), 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/QZHN52185944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b3667be9f5fe27928fc4d87484d790984c241bdd393977df58b0e2b084e520. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZNWX2173244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df5b0180fd32ecd8ed9aa79a1e49881cfc8dbaef6237f20130ba8937c325b33. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZNWX2173245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd0a65d8403c7affd239f8d9ea4b6685f506d02090cf6ea44de3dece766c830. 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/QZNWX2173246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb60f98e3f90eb15b04ee1612f584392cdf5d4e194d7bf614cf187057b28c99. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/QZNWX2173248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd5a5e1664049a666bcf990d7923d3249fd2fd89c92232f19b4d984e5a45371. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:26:05Z), 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/QZNWX2173249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5654504ffd1de6553d79ae77dbfb3d1b75bc3fb1a226d82f691272b48458f556. 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/QZDA52277916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf16fd82d3ab7d439ac477450f914b0357bb679510bffbefa82a18aeae4cbf36. 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/QZDA52277918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d5679dbbee5e344e2fb351c5e9064ba5a46a04c3daf464be46b5706d79221c. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZDA52277919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9da2111274175e4cbecb76ebbacbea07ddbec67c26cfe5c6de41c22a3e4c6d. 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/QM4TW2336903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6763ad55b48519d14bdbe8d04da884d228c62d97ec527fd996752430e662861. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:40:50Z), 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/QM4TW2336904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09eae2c84db00f6df29d1149c16b619c6f8320c24157a4ac0c9f2e540404efc. 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/QM4TW2336905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e0036bf9f2ea32477b6953fb5b31d34039c5dfb3d444c5b8d5b90dc6e7fbc8. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QM4TW2336906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4d85f4e3049a5cefc1fdb62e8aacd46504e955399c888a4a4f5e90b7e09915. 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/QM4TW2336908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ed2ad52449f159645ec9cd1ee0f1ac3d845bd256ff0464a0d68bcfb3a6b0fa. 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/QM6P42374162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a31251193cb9dfc0cb1883cc58d9607f3f58c4de9f6df7203301cbd8ca29e9. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZMEM2300721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7949834581d25d802361bf594f394b24f07f6bc38878e1af5afbd42807e0bb1. 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/QZMER2319681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efcdc1c274389a21df218df7d957caf90865db1f55e70bd288eb91b51ba51ff. 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/QZNWT2333976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72beeb5b3f607124bb08fd10c6d30238169783cd42c5d0e06b37e252555351e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNWT2333977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4934ad57008df97cdae99e706a3795faef075f7e552b884766523da6871fff94. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZNWT2333978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd4bc1b7946faa070a88795ba9345e9716baccba43bc2817398b626b55c148b. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZNWT2333979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd839888016c3dc5be0925abe9b915f789a02dc38658f6f13c3af5fc838f93b82. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/QZNWT2333983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6f22f7a6eca4c4258af88fa90da7107977ca71a16e2286c19a4bebe08aaaa1. 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/USZ4V2300178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed2a2670b290d1f79cf55112d28a250fc9e902c9e03f9706b744d925dc014bf. 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/QZTB42472059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799bac72141904d11bee5605b7a6845c836099a8db0b7f437572afa3ac477e61. 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/QMFMF2311362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c6cb3bac9d20d961d8386572fcabdd8f7889d33a29eb0fe6b9a35350aac77b. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QMFMF2311328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ea56f5cbc3fa5c7e1886109fdf3f407bcb2290692650810d7e903aeab07ce6. 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/QMFMF2311329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d4e654496a3209e55caa3ef48ff04311d4b0c18bfe712dd66b8467d3ffb387. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:37:18Z), 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/QMFMF2311330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb396e7611a6540c5dfc1d8029ee1264f869dc16f3f046e2aba4c3888132db5. 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/QMFMF2311332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8da39a4df96ffabe194030b5307bf46b86110ebd591716b0d454cc182c6e4e9. 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/QMFMF2311333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4a5b473f77619621029220ad7ff526f8b43645503de872f0d08901307a8780. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QMFMF2311335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c84e3b6e7c379ddbaf5c8601881f559a53791b7b51123b5043d2fc50ccb9ef6. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-20T22:00:23Z), 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/QMFMF2311340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799bac72141904d11bee5605b7a6845c836099a8db0b7f437572afa3ac477e61. 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/QMFMF2311362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c6cb3bac9d20d961d8386572fcabdd8f7889d33a29eb0fe6b9a35350aac77b. 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/QMFMF2311328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ea56f5cbc3fa5c7e1886109fdf3f407bcb2290692650810d7e903aeab07ce6. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QMFMF2311329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d4e654496a3209e55caa3ef48ff04311d4b0c18bfe712dd66b8467d3ffb387. 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/QMFMF2311330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9a399dd9e762739399adde4cc3d2e634bef02b02c96ee2f3e3ab8e15182425. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QMFMF2311331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb396e7611a6540c5dfc1d8029ee1264f869dc16f3f046e2aba4c3888132db5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QMFMF2311332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8da39a4df96ffabe194030b5307bf46b86110ebd591716b0d454cc182c6e4e9. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QMFMF2311333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567ed6ae31340580bd66e5818c59f40623abcf9924800ccb62d6c3efe9746bba. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:54:16Z), 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/QMFMF2311334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4a5b473f77619621029220ad7ff526f8b43645503de872f0d08901307a8780. 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/QMFMF2311335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cde224d83b0029f1d0a62a5e7aed9ab403686a57dbeeca688cb02e39c88ed9. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QMFMF2311336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872163d18c50d96aca13d96f1ae47bdc9a31dfac04459b9f6a3b422c6f2cc90a. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:05:14Z), 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/QMFMF2311339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c84e3b6e7c379ddbaf5c8601881f559a53791b7b51123b5043d2fc50ccb9ef6. 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/QMFMF2311340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda16b5bd7d7e528eed59de138b0cd848986ef65b1a6072770861c24c71bae983. 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/QZRP52442231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f09c821555ab5d8b0f6c0fd7477ae88a5671e63e77d4c61e589dcc36a3ceb71. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZRP52442232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760f26385824660794d815d86d93c8d38663d1d22e3d624ff5695af937f3561a. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:53:59Z), 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/QZRP52442233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c28dc42ceee6df3753bae0a6f887a7be796c8b1859948f5a30c8e5cb872ef4. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/QZRP52442234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1184b7e056055a159332dc557e0c77574f1cb0353b93f43a7343d30de4058487. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:52:06Z), 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/QZRP52442235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870cb8ecdeb6b64e22143e6a48c78bd626f1aa3cee03ffbc7aeadb2be8b18d9a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZRP52442236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1155e16e5595fb43296faf0928dc757ae7040d1b2045a64d96143924b763e106. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZRP52442237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7a2650d53880efc1b8d1bfa263102880f1ef69429296c371bb253a1e792a22. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZWFJ2496336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b4d0b72977b6d5f57ee619ccf987c79350c8f10ad5b7935de658bb6a329b4a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZWFK2471054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b40ffd723f20b7ca753a008472b1cd91ec4b56665d3b5eec7070269af1b53a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZWFK2471057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625bc145d04abdd13e0ec3939727415470b6978d77b00a713888bae65f02410c. 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/QZWFK2471058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbf37d4b4858447f58ec976aa9327f531c23dd6edb7ca7e9787647decb39df6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZWFK2471059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f4746803ce6a4161ad15c122ee501909e3584f037b94aca4dbe111470e943d. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:29:42Z), 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/QZWFF2563098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe779f42e0197b28d64d939eb781c4b6da86043193eb90e7d4588d264731fed3a. 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/QZFZ72412016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b13be96cb8ccb653ea892e1b40a203a1f161b864a91e7ff20a932e06b0f11b. 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/QZDA52433529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc4af8d00545c3f93b79b762e0906501c1e19f863525ce33620ba1545b365dd. 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/QZDA52433544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe779f42e0197b28d64d939eb781c4b6da86043193eb90e7d4588d264731fed3a. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QZFZ72412016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c7e46fee99eb915100e5557730d4905f7a90646a006aaa47fa916c4ab8eecf. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZMEM2164464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e5dc84fe6ed140d5d1de8ae818bb7c60228661f49b8b8f74bfb22c62e184f1. 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/USZ4V2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c589e6acffcff88d31a6d00850569cd0557a03a15f415f801e38641a860268a. 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/USZ4V2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532d91dfaba533d6ec26aeea66a01d3a59e247d5285f904f48a3585319ecd588. 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/USZ4V2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0df173d771634b2e315e2cc00907fcdf38fc68e836d132fd2f8cad5fa9e725. 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/USZ4V2400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5108492b85e1db9fd167878f009308c41bdc1c7e15e5e71beb8a73c6bee7e1e2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZVEM2312177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5108492b85e1db9fd167878f009308c41bdc1c7e15e5e71beb8a73c6bee7e1e2. 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/QZVEM2312177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a234f795f701fda9bd2fd272c8db1ac6726f90d85dd467e921049a541d2538. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:53:55Z), 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/QZRP42204535.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e3c3cb431d0822c4584fc04a252e8c3422a6bc2ec00bfaa869bea48751c95a. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZWFW2427802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108994d7480654636eb5a41ac6ce0fc1495d252b1a005e5084641fdf0e2f18e9. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZTBC2371235.