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 0xc042eb44969a05c8d33966ebb60d0c770be879a3af709c2ead3d3ce390f2f61e. 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/ac6bc558-f10e-4d66-8a03-20b65ba89dc5.json and https://artists.proofprofile.net/proofs/artist/ac6bc558-f10e-4d66-8a03-20b65ba89dc5.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 0xab4e80d613534969640253497104c37b9748bba243b15bfe61e5270120e39059. Chain 2 (Bitcoin): anchored in block 957830 (2026-07-13T09:15:55Z), 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/TCAEK1999669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb7dfbda6c64631714b986a00e7b0fe8ee524e6a0211690bd6fc3d2da5b1f26. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QZS642167125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8677df355daa43845555d3c2e76a3bc11203b97970e6023318657e18896fa06. 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/TCAHJ2373544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54f69627c91bfaf5489577187077378d1c092e32ce271ae87274c612ef1b73d. 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/TCAHO2370367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc427ff7297590f4b9d7bb51fd039ccd41501f063c2770aa8a2518c81899354af. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/TCAHT2462859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ce02558222d240cc5a7ab6cfa035833f162ca05e6468849173667ae8d614ed. 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/TCAHY2452358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8605995b40930471a5c1174bd9b2b0149ee70d8d113ce25b8f7f05e8204f1d48. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/TCAHZ2496238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985fe16a2b8007b9712d0df30b9e10ea1232ff7c005a4f6ff38ab186b24d1a96. 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/TCAIA2475171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1408eae608a85982950e4c5e59849d5d4011d5e02805919c9a666e20a13c8969. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/TCAIE2448242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab000a2a6f24c7054ac6a426bf7bb69693f7ffb533099a8b7ff765bdcda850e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAIF2487756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532fcad7ff8e100dc1bf9c57ef68cc37a4496c7bb658b8041f452b8a59b0a109. 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/TCAII2435538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cbe6ab3c73b83e66dd7dd9a7e37e6f54cec791c96c6a635202098bbe0f2b13. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAIM2450508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652640b8f17eada3b5f0c5ce24b12b10ca6de078b34c9ebc6d9be17c9549e1c1. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/TCAIP2494859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9252c2afd4246f4322f0ab49358dab73ce38786ec1b129296567401d9a6070b0. 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/TCAIP2499735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef6b651a579684b5881aaac1345aa752d8c5c1676f2fdf8e9c46ca90753e028. 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/TCAIR2488393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d1b484087d81bc308567f4ef854ebd135f88407eee1729dff2f326ec555c16. 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/TCAIT2471111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05426028964f129f0f76794db93fcf7b21b6dd138dc3817e82dba2944d25230. 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/TCAIZ2414856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d15215b85733d3ccebef82536e4df1060a02e9e01747857d670ea1b564ec3ba. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCAJE2522730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0632b737621ba1cf65462d610837167e8c890b5a939e192c71474911c2be87. 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/TCAJE2522740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa0c0e26a7d0bcf0961eae56f0d7f34a0f5c71cd8f14a4c67dbc17ceaff545e. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/TCAJG2540227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1a7a9616fd194b1db90f2a0ca69daca20a3ce36575accf1f9c77320d276efb. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCAJK2564076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755d1a072008fd6ef8bfa3e0b1c4f9860c1fa2b7e4fdb4e47609cea0240e7488. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCAJO2534567.
Munjya (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910b2795277cf2060406b70b8cd3d8bfab060b0a39ce3189c82e863f8b563347. 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/INZ031415348.