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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 0xfdce5620facc6660fc35eaa9601733e2cffc75867b308dad7e6a82d19b01d9ac. 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/59c89dcd-4dd0-489b-b6dc-dad7659964e2.json and https://artists.proofprofile.net/proofs/artist/59c89dcd-4dd0-489b-b6dc-dad7659964e2.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 0xc88bbea1cb77082602aafc7dd1c13adb7a4f90629636bf6e0f8e2f8ba5171af0. 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/QM24S1822894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8aac8e4c37f10ad3a4d9c8cfca247bf42693942100e3f921130c9d29b894b9. 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/QM24S1822895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0815930074f41eb35cba2fa8a3eab2f52b26ffab8294c282311c4eb3241c2bff. 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/QM24S1822896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8458fe54451e1a58b7084ba64367e203b11eabaa1a549a0d6a3dd32a2c5a386d. 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/QM24S1822897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fdd5e3e3d8588acb729cc6f1db11f4b7d9ab677cd58b0d9d6f4cf9469070184. 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/QM24S1822898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e9583ac3987e949e9ff0a17f1798eb97419324a050b10c87830daad2dd7373. 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/QM24S1822899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6070fbf034364e0512ddfa4a79e1c42f6db207240efab8357dfce6aa9a7adc43. 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/QM24S1822900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a153600560732641626766685bf87adc37b832f8d9c93220a8b004f82c9b2db. 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/QM24S1822901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225d5c4e437642bc238b7a9030edeaa8a91df9e680712cfccdac234e25e5558f. 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/QM24S1822902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a1312ad5ecee051eef820246994fe165378ee94f604366bb3d737d914ae78b. 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/QM24S1822903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43a45517227f6e16cf2f768a29ddd1bafb3c6930b28ca0bdb4c5a2fca9ab969. 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/QM24S1822904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94af24aa260db5fbc88839c29715210a82fc2a3f30b2401b0d4f5a8fd264539. 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/QM24S1822905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d608492ee50529a53a4e4ca2ce9271f016ab0f1b8f7dc25a6010c6877a1f8c1. 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/QM24S1822906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5061d7b872f060b1e1e1da54d30125d015092211a6d748521aa1a8f4c7ba22ab. 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/QM24S1822907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a120197286e97e949126198deca88f23670ba12dc0def5cdaf72ba2fe394a6. 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/QMPKX1781763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9839379ed526748434a884e644145af0f6463fe6fb1534022aef261b9beef5e6. 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/QMPKX1781764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e13ebc04bd1df9391e2d5b72242863eb45d3edd8bfaf7e431bbe8a88eb3e9a. 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/QMPKX1781765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32901bd032503f429df4e3cf117da4f4647b7c0c63cb9750acd4807d953ee8a7. 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/QMPKX1781766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f012aa9adfed3fcca95ddfce730a4c14013b3b3890b63b2ceca86dcff1e6131. 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/QMPKX1781767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca9cf4bdd1a9ec8c43597e75ff2a648202dda0d64a9b110adbacfb64ac2418e. 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/QMPKX1781768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055e83a8323d143a25fb0631dffe0ad5aee7bcf048782dceb78924e69ff500d4. 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/QMPKX1781769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a31108a577d9067690fc4b57a6faf545c8dd436f915e4fbce5db72421fa451. 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/QMPKX1781770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be05dffa7e8111b6a6f3db7d65067be093cb8932e5d80dcbea1a081957f77c3. 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/QMPKX1781771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed8dacc252bc59c90fe1c1fb88fa086b9153a60e64d88d34bf3bf855bd05c7a. 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/QMPKX1781772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda11dbeb8332a82546b6136be93882f6e80f37fd1ebbf3c2456b7e946d758c3a. 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/US23A1501154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82b1d6352dbe08194456194a3891a16b5fd25575c4c6828bede2e3be7faa805. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US23A1501155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9314f162f2f2d46a9ff77669f651fab5ebdeedfc562a2a3fc346c472e479c395. 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/US23A1501156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70244044eab05767172827c0ee6c6ee38fa91725247f25d4894c75965c13b474. 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/US23A1501143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc39414faa4df8b67d409d495ff4fee05f4ba2faa0d64feed91e9581c34ebea. 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/US23A1501144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18cc25b5afa00c6e432acdb5cf6ed7729a73ea3a986b9758694d096113a8da5. 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/US23A1501145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112e3ae8ed0eb58eb4a40105ef153f056966857a1872a4e7a30b7a4126bc2f9e. 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/US23A1501140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0926d92c9bfa4f34638baedaee0cab2d352df32c540be9be90402f67d664e64c. 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/US23A1501141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa844e349ebfe9a616f3cfb727bdcbe4dddffffd3640e9626105a56aa43a3761b. 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/US23A1501142.