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 0x8650411a531cc443f29498497f8e96ae085099b07cfaa6e6e97314de281f301f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c82e86cc-15f6-4220-a3e1-4e8c6002c4d4.json and https://artists.proofprofile.net/proofs/artist/c82e86cc-15f6-4220-a3e1-4e8c6002c4d4.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 0xc09efa64ad8a486a1f25d833915a353d9b2559a8c532063a21245a5173841a7f. 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/CALVP2001999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eacfafc839eff3336dd82c8bc0bd96bb63eb9fe3b78b36318547e156793ae09. 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/CAENV2052409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ed21460455c0f749ad88d6fe71e508f40d6071ff65c62c8164b94693572d1f. 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/CAHQJ2182380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1948247c1bd325a76a6d05c8d7ef0769637b08c24c6166ad93e9e79363073d42. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USHM22137395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fc631bef1bb264cfaf5dc6879dba7ff7da3c8895bef9f44463df03af2facf6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CAGOO2136488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec5f4ff30c03ff93345781e2a00d76d11d5d45eee14e0eb56abf58d2a7156e4. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/CAGOO2190743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4447218423e45b779f1fb73b656bde89bd91ea36024ca98df4f02e4e1729fa11. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/CAGOO2190730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812af56a08fada9cca970ed80e113d6a30e8f2cda92179f685523f92dfe8b219. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/CAGOO2190741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c48cd28a363373c9011ebafbad90da5d17a2a8a961a2adc3ccf6f327cb73a9b. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/SE5752282311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7175603df25271aff7e9fc7bcf795816be444e8b009f34ee8dbfead282c16e5. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/SE6HN2261477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc45e34acbe3d92e432a6c74975766f10376b1b468e80baf2f8e752091e7e9c. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/SE6XW2243077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0adad38ddc39b555433dadbbf3c08130c8a74408d98732f2ce649fa6f6ccbb92. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/SE6XX2213886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71dd0267c1c0ed3e42c9bcd07b0c5a351b7d7798333cda129d89f32b1156635. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SE6XX2263540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a0ef05d3018ecc928f168e9ae790ba929f7edae6820fa4048575d33106f495. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/SE6XY2248277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e859ae7418aeb55eb181ef6aabec0148e8e603996ddbc0c7c251f2e3632c1f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/SE62M2205869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa069af62cebb0ac7b5a4680ed8ef3b6b9f395cb6b7e0b30fa0096547198ce4b6. 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/SE62M2245277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab22ccdd0566dc5ccf5f0462f0fac89c115fa52c01824da3d07146961074f97d. 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/SE66N2274782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476317190f55b0c2804d3ca8ba3d4803c64005fd86fc4f6cb292cd66c9fe6c2a. 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/SE6SA2274997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe86d3610643b360022dd4e452d91e8a6658d728b468082145ed4cc9eac7098c. 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/SE6HN2338918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c11d7b3cde6ca853d339020986ac1036bc78d3ace036ec0598d5f2b39304d7. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/SE6HN2374498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836e476ff481eb2deb74dc0cd4df1afccc883847b3100f9f68ffdaddab8b58d1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SE6QE2362143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeafa5113cf33a0d7148457af017d267611abb98a4f61593f4c99fff73bcbc490. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/SE6TI2348067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7650cdef1620d3a1e3bacf90bf261af5ee1e5827dd7c3cd929ccdd39fd52ae5c. 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/SE6XW2360971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f3051559abe862fe5579f5b5573e17675e5b0cadc749ee605ffb2f3f711b6e. 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/SE6QE2388475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa518b4d9856032f256990d39bfb02543b31a97a010f65b456a6eeef40965ff0. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/SE6SA2329345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941fad869dd269bcd13ccd680179bbc311bab21524d47a758f74bb697c4d0f80. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/SE6SA2343063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2d5ea23622227691f86bc769cd1c3784c2d6b5ca92206bce576323d2c6c271. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/SE6SA2335238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109d6682dea80f06a3ef5ddca9eca41b13dfa19c0048bea21a4f3323030aeb2c. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/SE6XW2328703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc646011a249773ef53dec9210e93eb839b5457160657879a1b4a886643657e15. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/SE6XW2328291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977932906484dc6d486ed70ec6af06068976936211ef22cc8b15a0fa9d6a32bf. 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/SE66N2374807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016f4d6c4ee4b40fce4b5149872ca38ee46bd8387d6397e28a7a97c9e5e9b581. 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/SE66N2372810.
Monkey D. Dragon, el hombre mas peligroso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93088b97c1e49f6d514ad050fcfd5c782f73728c6c7adaf9350360404068dd1. 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/SE5752414988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d900b4c0a283b8042cdfb3eae2ceaffe8f58a64c11b46f67f5f618c0f4bef1. 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/SE5752415089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ba0609660d0bc2c6010a84f696c0c3e97ab43ac59039e26756e6d231b1ebe1. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/SE6QE2430850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e624c06d50f7e0d8935d8ab9d1382abe34826b20ff50f3088467c2313f5446. 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/SE5BU2503604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a27331684dd87dec3204700a623bdb79bd23dab1222a6e1d82107007d35035a. 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/SE5BU2592829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c79a286df8c5ed85201e5b163069fb9cc2aa3d747e04b6fc211e6624a8d3fb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/SE5BU2596194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff751e1593f9119c8747ee61c56bd142947ec4b9404f775b84344c2be0c4a377. 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/SE6XY2501038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf2e961c945881cf7cf596f77c1e9cf3a8fa4f67a61a681d579e8d5a9c410cb. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/SE6XY2538519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062ca1c1471f540c23cc2a289f63d22e5fbcb7febbe5c10401046c00f7a8d9cd. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZFZ22489666.