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 0x377a898097de3f972b71e2cafe24ad4410a7d3f253bf4c8ebe9938f2d0e8663b. 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/d0052029-41fc-44da-bd22-ca9db8e2709a.json and https://artists.proofprofile.net/proofs/artist/d0052029-41fc-44da-bd22-ca9db8e2709a.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 0xa9bb796d099ea05be9b6a03956d951f7fdfd78f6d9aece6d8098f637a1299f28. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:19:53Z), 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/RUA1D2317861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a279f9e08ef28a537099a4e734458a8e00f68e618c871f8c664071e75881338. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:33:55Z), 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/RUAGT2210034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4456a2b1ca6ec447b9df161e612a9b09edc4d0a055f8f73637eaa14dff2b57a. 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/QZGLM2497972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe395f3edf49b5413cb8ef059bb019cce9cf66728860013ef02b5853078e99d89. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:57:08Z), 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/QZGLS2492699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf60eda095fa715114b7f241ec4cce3280b23be78d6b98abc647b5aedf4d81c. 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/RUAGT2404099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c316455d1ccd42550c875c6fd0fee35140b145ee00dc1636512c6f726eba9d5. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:00:04Z), 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/RUAGT2441361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf043e70e02ee4b95cbd87e39325a01c2828880143defb5626a33e6b978a7d0ea. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/RUAH62404777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb239a9640aeee401efeaed32bc7494da8f5700f19b105024cb6184360e1c1d02. 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/RUAH62428638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77e043f0f701efe7a44c932529146bb76b4eaaa5f873f9385f4523394168bce. 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/RUA1D2502190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7d3d1bbf75629f4df300ebefab23c40167e98500b876c091cc8a14502513c3. 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/DGA0Q2433078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8829371ec7aa81b4f3a306a9855564b26d2f3b710ce7adc6b8031a3609c347b. 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/RUA1D2529165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01984617fca1b31d7ee1ad311d0d52132e9b9a3b9eca8711347b292351413857. 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/RUA1D2529167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ed315cc5fc59e6edc958245f809d0613c01a8ddffc1a2cc6242f99babdacae. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:56:49Z), 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/RUAGV2500604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1697d928d70d294fddc8d9309669449358bcc91c248b57206528e74f02d44cbe. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/RUA1D2547377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac79bad32b29dd87edf5b3f8a8adc7a620f0ac465d31febf58293f119838d338. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/RUA1D2558314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae469452fa35b0b95ce377ab02d89bb8c3d21fad0f43d7a98e4ffd15431ceac. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/FR96X2581782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6facd457039073f119ccf12890acd63277924131180cd50e7d00eb8e340a02. 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/RUAGV2503524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0209ae9c5d81bf520e3abaf1ce0e93249a97089cc4f817520760d0c3efbb971. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:42:29Z), 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/RUA1D2579618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c1a169036845c204e5e77fcf1f47698cc7edeb41840cada6738e4cb4bdf095. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/RUAGT2504465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36c58347103e3bc16c4c688f7483afc32689229d0a2b195f57f2a46d9847e4e. 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/RUAGT2522534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008ecbb09ea9cbe85c1403b8ce1b3401554abdc97fe29f804b673c8ef9c6eb75. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/RUAGT2545684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaea051dba9d099981ff79dce643da04357f710f41ca9e7bbe5a45ad085657de. 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/RUAGV2512258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394282a9ac550c61bf88a147e7533091669aeeb1a371f99e82c006d6e81c5bfb. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:48:42Z), 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/RUAGV2513363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af6d643b8724d8d9f9f1bcdccd1cb872bce8c5851c0874169f4c3729f392b29. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:03:10Z), 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/RUAGT2576315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b200ae840107d8f5a85efe7b54f94e8b0382abcad1fe3a5ea4114cc8ef33c7f. 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/RUAGT2583634.