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 0xf67f0818bcf5482ebe5470654cf8d9d4946ccca9ce3a48b56798eee08dc1a0cd. 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/85fe5389-884c-4568-ae93-5e2e8e8a0cf9.json and https://artists.proofprofile.net/proofs/artist/85fe5389-884c-4568-ae93-5e2e8e8a0cf9.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 0x60ae1ddd446bb352d6f69666eed064c04e58b7110d4634177a7e5692bc38de4a. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:08:47Z), 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/USDY41881795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d20279f12f485161518c088f21a0303359bf0011a95a4de8cb7b91c7874e6f7. 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/USDY41881797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5ae81f605d9837610fa2caabbcab7f85bb673f23c03017990ca5b7cc87966f. 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/USDY41881798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50f0fc69eb2929f98ffa7d0a6db8f87ed9efe0ddcff7ddfd7f5e1e3f7512d22. 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/USDY41881799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14e5f6835d1b405b803c873abfc0511572e0fec250f5fd961f41e0fef126fd9. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:04:35Z), 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/USDY41881800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2938cb2e638afe2e3199162b3faf355850301944097c7807c90bcf51175bb327. 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/USDY41881801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0a480096adfa6f55407b623f782dec8321321ce7eccb3b25ad373e06043638. 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/USDY41881802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3b2515f9974f1f6609ba910947be02be93960f301670df316362617550e4fe. 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/USDY41881803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13ed3d02c166949439d0613a0896caefb61f393428fe3f934e2b1dc5cee923e. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:25:26Z), 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/USDY41881804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c90cdaede3f47f770b1bb4b4d3f0fd6e238d0ebf3848e107e2e7ff283ef2bd1. 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/USDY41881805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6e23101b08c0c95e2133016e550d125ddcd901500fd2907db0317efcf39070. 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/USDY41879176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089a98286cbd0164c7eb9fb18d3761898b3609bcb8748d8882b20079856c0026. 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/USDY41879177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd361c01ae44fc15403832a2a623346bc2e0b487b397fc84a5197bcb5d7c13582. 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/USDY41879178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d2ff921b627ddf6ff041818985e28775f72a4fc2bd657a2bec3bdabe0bf36d. 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/USDY41879179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85de299633be00227f2bcc33b17f19d54b9d604659b95d5bfde5b4b1d7473ce8. 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/USDY41879180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8318fd6475248a977ac95306e6e3149caf4720c703dd3ae609998343eff32847. 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/USDY41879181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6202fa858b70cf98189aa650977bd5924378c8c8e8655a04c1e86076887ba4f8. 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/USDY41879182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f402d9ca170d11cf5a41f5e67ab099817b93138973dd135b664cd8f3de36705. 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/USDY41879183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabea85e9b4b16981435b28d26f00c52f4caa67d9c28de6e7cf8b14a7775cb228. 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/USDY41879184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5466bd9001f4ece0795348e91042cf4c507df10834a49558c86ae8bae981da2e. 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/USDY41879185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984e40e48d4d416e54fbe1a1550c37dd26b8e4a42ecaa756c99f8e41fc942179. 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/USDY41879186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d61da3227a753bbf2fc9d3fe67f4bb991df6d0c716b9b3c5fe3665e563940ef. 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/USDY41879187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7806fe94902d0378c6706df68958171a60e159cff56c0dfb1d8610f46bb81e0. 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/USDY41879188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350adee9e9cc6986c6415f576d224b4f01d694bd40b333cf93c2fa86e99ad55d. 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/USDY41879189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ee154f311db7bf18ef8b43a6c3171d8f82b3ec2f11a1de293a969d22a432c4. 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/USDY41879190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f322f43d6a72fe5664c0ae7f4a2fc9ed0732b408fa1ebeda083dd359f5ff2a. 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/USDY41879191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a65b04c377fde7d35ec22e3789bb0795461bd402cde37ef20507f5ba194a3bf. 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/SKG671400411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90094bd581cbf0a84bf0fc1a059c5577844325ac007f953078af520ed871543f. 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/SKG671400418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a827922fd85af37b057120c99b126947bf3f2f90bac95d7cd63b0ffa9f0ded0. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/USHM81805401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6539b0fc3ef47dff282e94a512d0b73f99d4d210b620ab498678a843e58128. 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/TCADZ1830095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6b28196a2224e02f280a9d6077166f192d366a80053b81fe875a692869f2ee. 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/TCAEE1903624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7430542f77d8e9180c3fbe033e0d25579272f4e4779f854ad19e12d4e8bf36. 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/TCAEE1903554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f09c7ab3bda38b28fff1c4eacecfcb60895783965edda303f9ffc2c5ed03e6. 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/QZN882177771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca409b2b416862cf81f947e817b542e358bb3ffda0eae0da8799608cde083172. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZN882179408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4636ba3d0bf8c8ba8cb6172aea1ae7ac7d7fddfdefbaa1748715f49659b9e457. 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/QZN882179404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ec3e0fbefba86563facd2d24f68a4c9741bdfb7b4090904c545bb7757b764f. 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/QZN882179411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96755549256bd9c0fbc96a00fe056f83c6f765773f2d44f312a6b5339cddaf40. 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/TCADZ1841742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637c7047bab548ed11133390528f325c28d0ecf818f8208686c224ea443410ce. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKB841401406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48523d26677d1f13e9cfc6681bef246e07b72118b39b7f90c730c81502308896. 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/SKB841401409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb059e5e401ad34c5a58a656f00ba168fcb51a951d6b387d78637a542beffe8bc. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/SKB841401410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fe2a282b35235b282902e33b51657a501805851babdb55c1cc6e8aaa52e5c5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKB841401411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1a46ada4908d13b132c5e5b56ee14b17445dbee45b08baf2a1fddbc1154229. 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/SKB841401414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b1d6aeef24ade93d358825e56f3f2737558ea2b1ea8907096d2d6cababc14e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SKB841401427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bc19f50e0440ee1feca7ddb7c3e7354f7892a3ccf5f94ec7a37dab40d0d2fd. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SKB841100801.
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 0xd1feea85d0647a22ed22f8952224950462a6dba765b4a9b7917d19c5973abddc. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/SKB841401204.