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 0x51da5f3e3841a02aaa2de989a0d297d63ce924699baa91810ff1663553ee577a. 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/f30aa8b7-05aa-4156-b7ad-d524a7091c8e.json and https://artists.proofprofile.net/proofs/artist/f30aa8b7-05aa-4156-b7ad-d524a7091c8e.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 0x4e8dd746a848051dc2840de6d12683113104ef0211cf31f460da7229a17831d5. 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/TCJPN2036534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d80f2d4c684fa792e1d9759e2ec40f18f43de1056edda11d133f77796b28856. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:56:52Z), 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/TCJPN2036550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b65846e6b602aab3e4f46048b70ffc6221578a74f8c20532eb74d560f8fdafc. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:22:52Z), 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/TCJPO2113356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d939d825f340b5584e260f903a9331f6c336ee6afafa1fa56c9b0ce35a415f. 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/TCJPO2113208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82626c91f9f65676acf4500fa234c41d7472a41fce3fa85e2c79424aad8812ff. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/TCJPO2113289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4aafda83780ceaa12016c47ffe8dbe37718b9320b163a0f35450297d1da33a. 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/TCJPO2126743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842a2291f10d04613fb95efdefcfa15f9cbf751861a9247f7ab1bfd36338eb61. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:30:24Z), 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/TCJPO2126754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bce55f28d43be182e155cfa7a8361bdf0944607c0b74a4455dd94e941b9f405. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/TCJPO2139920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb255553cf406fceeb5a973ceeef92a84fe7d254c4d6ab5d484d8802fc77be1aa. 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/TCJPO2139930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90f5d077439e234ba546cd8a3f1587dc40f04db830adde0be2bbbb54fab475b. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/TCJPO2187068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acc61408b90dd89727b04c3e73076438d1875ad27f05352e902d0c0c510ce44. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:30:58Z), 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/TCJPP2177929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92de82ef789a72b34a862bace4491e903726051c2ea15d5190f064c5c5aea77c. 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/TCJPP2178106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437ed550da32b4353b33f785997a60f68ed6ac5486d72701c3524f855317369f. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:24:43Z), 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/TCJPS2200957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7bd42bb994fd2f7187de52328f2fda4645fccfff1e2c8b48811d0fbe1179f9. 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/TCJPS2200944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc66cbb15576fe61c33a055903048ba73e0bbe4d30f72d1f3adae266c4a799b. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:03:25Z), 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/TCJPS2206322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a85afe705d158de546bbf0f9f5dec6d5683a02061742c791f6b495717b5e45e. 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/TCJPU2383514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a21afc52832398bb39da96d937097d0a153af7702567e30eb9b62a0beb6374. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCJPU2383518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780411696bb038b155fd31fa5cec8875f92308924779691b7ab46451c51c7d88. 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/TCJPU2383541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0df4b0231ca0a9c4b4b420edad64fdcd632d41e1aae5091e6492271e4a766b. 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/TCJPU2383542.
Just Chillin' (feat. Captain Noah & 草加Family)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ac3d7d10cb12238dd627aff083ddbae80abec02786f93a3154d5807e0b958c. 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/TCJPU2383543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fe7a984065eca9a247d4b96825929bacccf84410a97714b44d92f176368074. 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/TCJPX2388185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3793280e6de1fa991ef3743847f0a9c5753ed4e4620f955556a1b4ab0205bc. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPX2388923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ac13800be14f3e5e234fa399bf1e76dc85c4d90cd3a28af7bd6f84876e060b. 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/TCJPX2389912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d992fbee75fca8ec8d0e733c9fc74dfc96e8c7e784582e0d9c298095307be3. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:25:59Z), 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/TCJPX2389436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6993a293e7e343b888675a3b6b4f8caba154fb0c53a5cd487c3396f1f97f05ba. 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/TCJPZ2440767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6675817fa0558ae8c050520a678113d40fc8a1d3770de17a9820a0e9c019257. 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/TCJPZ2442457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b6e1690c23dd2b893954c3777d8cb0db986ce868148b77dd0f90215ff94dbe. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:35:57Z), 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/TCJPZ2444670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e059e061383f64fb598dc08c5347bde2c9432f75e46b9b9f100d2281d6f52a. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:44:14Z), 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/TCJPB2469619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa048d10eac784248e9f8c5958043ebf3a5c551898569816b26504fcd300d6f. 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/TCJPB2472411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fcc7273d412d34eca8995694f379e10f22d01c8a99739ecb6060ac40bedd5d6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCJPB2472420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921fb30e9622b534bc743b3aad3323b2cbfe7d1bddcb9ac7054236626d3ea31c. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:57:30Z), 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/TCJPB2472413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc92548e68dce530efde07d9823ae8d30257d4f901756d38c437bd73cea0894b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCJPB2472418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a265291d9f41eed0155a42470a1f343be35b09effe4b937d2ed2670f54aac9e. 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/TCJPB2472419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc632b60f677f7ca0f2adb1e16afb246b555e0451d90337bfc42c31cfa6a66528. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/TCJPB2472423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f9ebd3b54651db6503b4dd07496975b196b037faf9c3723919f49f20d20fc6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCJPI2502352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519c6afec3cd37c98cf637af0fe4a4adfc4ddc0fb44c3e2a92ebaa22aa678e62. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/TCJPI2507862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c18ac73fd6f965ea65586c34262a6b93ba47d45985a615a7ddf3b8bf60713c6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:39:58Z), 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/TCJPI2507990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f5f1797ada971e9ab4a09ea183210f32e19e26194cd88ab67b49dfb20fdda2. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCJPI2508032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a027913475350cb8cc1d710c415109fef290f5de94507c2cd657c39dd58ea0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-20T00:21:23Z), 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/TCJPI2508047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6642735679f8266381dd46e7616643c99e466974fd323c16f9a8fb142b6f78a. 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/TCJPI2512707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e10214d51ebd53f3292d7f5ee29205f078204ec4a6d19abe4cd17cae828c258. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/TCJPI2508050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7db8651b3a187462c874a8f6895c462d5c313240c8f2d05865c6af31e783c9. 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/TCJPI2508051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336b1b4fbe0e6489d7e01a264989343feb20f1cc4e6c3d1b17ac33023da7cc19. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/TCJPI2508052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede42406b1df278a983cc778604705cd8016d6b5582d66cae7e5e817bf64bf05. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TCJPI2508062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5837b32653145105a9a377bd164b1d3919919a0964c778ed67ee3cc26c0a9d95. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/TCJPI2508066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd57418821160b5808d39d4678e9ccceb42ce9f35d3948bbee0918f2085a85d. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/TCJPX2382073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91210552d7e2ae5cd625df95ee15005a16b9c3a737af755ae043e974c5aa09ab. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/TCJPX2382080.
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