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 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 0xbdcc49c5f6b4cf11bcff53c707339a31c05792e4b2ad13125f75ea1f757f3078. 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/885a51d5-dc9c-41dd-9b43-2b4df8f51544.json and https://artists.proofprofile.net/proofs/artist/885a51d5-dc9c-41dd-9b43-2b4df8f51544.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 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 0x32eca14fa8df265848dfd0b33807ea25fa357ba505a72e401f4f248a3feaee9a. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/INA6W2201000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756858030648ceb8f3fac0028741948416929b85d06402cb4e91128f5fc821f5. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ING212498183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71d168154fa5f3abdb826a0bcdef6760dde157abb5c94e4e03db4e9f513fece. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/INA6W2201121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf54fbe862a716ff5143d3b1b78d768b48a1ca9264935a190dec2fa91f178333. 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/INA6W2201116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3949f88bfdda0c5a1107cb7eea561c1e060508dff7bce748304dec5a72657b7. 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/INA6W2201104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cfc160513d397a806f6c05cc28b8bdf00349f7557c102c7fbdf7778f631060. 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/INA6W2201085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc8feb957131000de021f47480ffa5667a0bdeb39c87ff9cc64c24abb7755bd. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/INA6W2201033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d68ace5c2d41c080f500ad5e5b371b75347f96af46ce971f75ab4a2102e3f8. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/INA6W2200877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9c55263b4b340d2cf39543151d7b5118a37a50b3577d060cdbbee1b9ace5ea. 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/INA6W2200872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aaa54e31cde34d150f912680d24eff6b6c3b2c9e32faa5b4c40d5494c923b98. 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/INA6W2200834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1cde42087a2e2458955a3c0dd817f6a1047ef76638b196e39ecf4f5743fdda4. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/INA6W2200807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f1f96a3dd356f3b8c538fa68d94e5017ff6fb6abcca33db6746660e5793023. 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/ING212480872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235bcd248716755ed7636acbe6afad6b06bc86554a9bb42e61e9c2eb583830fb. 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/ING212480877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb3f628c38ef05d93bb6974d3b84ad3ae7cbb97b14a6854b01cb20e64df8668. 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/INA6W7220086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead16b0f9ddcdba5baa77a0b45194b4fce58c718d32cde474b380d1e138b06ea. 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/INA6W7220082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd644ffea928e047c607f8856d99824c49fe682944c072a0c51b789873b5d0b51. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/INL412402961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ff24d2eb660200d6929137c67da5625531055abedf81e5744aca8798683948. 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/INL412402675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77890828452a2dfbbd2450d4c79139bc62c0be83c6b28817c0e7efd82eba9a9. 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/INA6W2200677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f26be3bca20a3ef1023918ea334bfca4222be5a385b773c50f1ee4c50c835c. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/INA6W2200660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd480a8ce5ebbc35e6df379c40050a7d9609b211b9a0679d35b968d4d71c067bc. 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/INA6W2200517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fcfa380d8e6f5384f495b144f95c642ed73566a1cb47f5f31bf383241300d3a. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/INA6W2200455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b674086e9ce77f7b83cfca8323c51d3d4ad682fc94d226b6d2573367d3ab196. 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/ING212404896.
Kapada Badale Tasi Juwany 17 Lada Badale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550d84d91b0b94906c1dd001812cbc41c40e6a93fa896345e8aae4272baa514b. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/ING212495727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ed0158671eae5fc39b29c4d13aaeb1c1c13e038f391a940d16cf2f108d1188. 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/INA6W2200829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf8e341ed5354a22d783a21176a4f5d8a6f14715ea15cae0091eb5854225de3. 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/INA6W2200426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ac3a4e74cdb9c209a73dbd43f6cad8412733d4480e83605d7c64ac93e8b145. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/INA6W2200418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6486d470d5ae44a4276157b6310c3430f277ab874114a6258a772061a79fd0f3. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/INA6W2200413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c50a92eafca13f7e14281678e454ab7c5da761b6e7bbd4fc28d716ab5af928. 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/INA6W2200398.