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 0x74d593b2f517fa43fb2180c581fb654892527161185334a235ded21ca042416d. 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/d9eafb97-c66c-4867-9ddb-c810d7f0bb2f.json and https://artists.proofprofile.net/proofs/artist/d9eafb97-c66c-4867-9ddb-c810d7f0bb2f.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 0x33951a51b92ecd14a66affb45f9fabbb704e41bfc3642ec589d35a9f59ca6ee2. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QM7281532414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3face1768af5db8c8d0d2a7fbd0ba758d1f7f488187af7aef9d8ba3d8de92a94. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QM7281532415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6d0db41810fc412118e11479f2fe17943b00725997135efa8c08e45f2abccb. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QM7281532416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea68d33f21f7f63989ec3a6283ec49b690c54d733390a64fde94f0035973a7d6. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/QM7281532417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd4c5e384f0e52db6a0c15752504ba7122fd23a6c009bf696ed28c463093be0. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QM7281532419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66dd747e6ea0df5b73d5dd8c8ac710a0cd6fbf0924f8aeda8447b57edd08cc5e. 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/QM7281532420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff31dc93c01ee54961b4e7b7cfacb2d885075442995164d9738c5a9a216fe19. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:23:21Z), 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/QM7281532421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5935c5c0caf72364977d755d84d52315683c1fb07625e4f54561b2b8285934. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QM7281533756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e9fde298a67b27f8fe729fe6665697b7dc6a33d559a6269c9ead64fab32737. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QM7281533757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85d68d3febeddccbd2f89268f967fb83ef5d2ec68e2dc9d309d19fc1d378ab3. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:43:19Z), 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/QM7281533758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5b4244e5ebb6b79fb1a295cc3659f9ab51eb2b0fed90cd8881efe3c1124609. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:21:24Z), 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/QM7281533759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ade2d06571e4d505c9ee20d6f6ac837c80eb8cf0d3ec9815965ea585853f2c. 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/QM7281518013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe88df7fda5dbe31f630cbd12d326eb8db7bd0d344a63e3686d63141e7a2ce7. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:05:07Z), 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/QM7281518017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8255df6a6279e68e44590888873d283bfa218fc23516cf6357bb8a37cd1bee. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:26:28Z), 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/QM7281518019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56634dd3ba7d30662325ab06a4d17d8c3ce7cecdd490f9728d4d04b489e1a045. 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/QM7281518952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812bc928ae74c5085f7103ecf2f5f32f8184e42f137453f84ab810fae77a247b. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QM7281521164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e61f155bd91a9c6c13e36f31454ad562dc54e9659140e352fbdcb6654dcb82. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QM7281521165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3343e47ca407accaf0ccdcda9534f193081257c4f3d1ad89fed263629e49489. 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/QM7281521166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c89fd30c72d1f9b199f15bbcd4f9cd521eca039f43ce118ffbab9a4358e0d3. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QM7281521167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca37c7b08d860cee9946a695e77b8a75135fbf92088ad002e70670274b2601d. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QM7281521169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ae1e5fb3f857bdf33ca33a65ae318bdae41745872bcafbfe6ac0b17717c8c3. 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/QM7281521170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca23def2ceec1242225a2f0e214f3c891500c24e7d9ec782a8a77417c92d11bc. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM7281521171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f0447d980a8fa0f5a04064c82253900fb7da662b8b408694b9092e0ad8a0a6. 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/NLB930401313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d5b2db58516b8c13c9e30a4dbe16c502b886f8705ae7aba67e7edef78932b9. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/NLB930401331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d9bb80cb3ca004c5237710fcf683bfa0601a56b6361d42ca9edeb74eb059f2. Chain 2 (Bitcoin): anchored in block 957629 (2026-07-11T23:44:46Z), 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/NLB930401332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8bbbce427a1862fc93905ce2f5e819e3a3149f730d7f4720856e3ffc6e3a97. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T16:26:30Z), 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/NLB930401333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190ab16965f48acfb8c867e606127ee7bb6284e607f8dc9710bb01d4c8aa41e9. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/NLB930401334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5477ec3db90d77bfdca15e81873f37e633a186af39a32013d8002ce62274903. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:26:09Z), 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/NLB930401335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793b226ffb4234cc2ecb2481cf9f73e6e62bce0e04cd9c81565a30df6b7eba03. Chain 2 (Bitcoin): anchored in block 956485 (2026-07-03T10:53:04Z), 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/QM7281524128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abd4d88edc7e3558e83aa4274c4f7c80f845d1557c0d4ae5ab0d95eaddaadb1. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QM7281524130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7182600e342b1c7efcf4e39a4bfef2d8316dcec414969675ce9fedc16b1e987e. 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/QM7281524131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e13cb6b9e612b1d4d8417ffde77b66d95ee80ea4d87716b89670a7f765304c5. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM7281524132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947a950b3a2307f2a82adf7b11712c2a81bf162531b17266387d151f3b51ba35. 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/QM7281524133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8f29df01812210ea37cf029e396789bfeadc38681f60c40f0d994c35f4c0d2. 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/QM7281524136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db1b38fb41de9be461a1148da75a8f1eefcbb4043ea454da48a2a3e2a2b7d12. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QM7281521602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779404b18ad335e3e41e7dd037ca066e83e710ce1c02ee8f6c2cd00ad0c5afd7. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QM7281524497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4649f3d5ae7fdd63749388784e0fadb099c5668b37eefe92f9467afed2d6a355. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/QM7281524498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ebc9b21fdc39252240fdbf8cc533852d3fea0f8a059b6c79ee84509e027f42. 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/QM7281524500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03008458ee59926b0786579c50c03c805f8f30eedd55aa4490c95bac562c72e1. 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/QM7281524502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71187ccda3c05d6d89c8fe310109824730ab339bbb299fb7997975a88bb6373f. 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/QM7281524503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b25b2f0a51c451607efc7d0c742cdc3c9bad6c519fa381187509ca84974118f. 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/QM6MZ1464073.
Evil Lives: A True Metal Tribute To Black Sabbath
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c7663e392b540604e06994789f62c9ef1da726babe34f7d1fbda1f538d03a3. 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/USDPS0600624.
Shrapnel Record Presents: Shred Guitar Instrumentals
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c779e2fbffa2832b80dfc508c80a1b744e2f89594fa088a201c41255f3ed59. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T10:06:34Z), 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/QM7281521162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed15b1c7ccbf12eeb43d702d75d95520f102238caae7c05df7226df3782787fd. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QM7281526435.
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 0x3da4926deed6cea9aae618e0c342877b9dabc1bf63b2304a9aa0597ceae61609. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QM7281526682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b374f4d94f24b08380b912cc3c8ab457fee2eceaf97b839055aaa51674bdac. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QM7281519339.