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 0x0c4c73bbdcecbc3cda497941b85e8d9cf979309804ab706a871871c1bec64e11. 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/eddb14e9-094a-47fe-985e-560dfcdb2dd0.json and https://artists.proofprofile.net/proofs/artist/eddb14e9-094a-47fe-985e-560dfcdb2dd0.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 0x86de1c65824da3ad59a0a9a4f71eb59302f07e13667f02bd450792024b7f1ffd. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/ES71G2034394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d96adce633e77c5047cfb96b0b8cbb9f88e6e8e7e0cd9be3dfd8e1d8bff3e0b. 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/ES71G2055029.
Vértigo (Homemade), Vol. 3 [Versión Remasterizada]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4393de801cf6cd01f3066f3a1a0f078846df3d3fee56978e4a6319bd03545b6f. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QM4TW2147660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1012292f3f14b07b1825d1083d98e9317603147b3f7f4cba4273570b04c13a9e. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/ES71G2110047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230f43f612e3f886d4c98b252582c6fe61327674190c26ef6faea791a1ac92a1. 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/QZN882150361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678a1e4e170fa206f45711105e0e9631e5328e5348e63478a72d8df8a6dd27d5. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZN882179354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e36ffbf447b6a5f3f7aa5e3909d2760967ac0f56631ec1a0abbc940e1dd67db. 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/QZN882183544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f8b7aaf6938420660fb6ee011fcec0958ae60f7b2699c34bbdde8dcb576ecb. 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/QZN882206275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a98a957cc477365ff7239e768a981cf1c41c0807cc901c606baa4a80ebcae3d. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QZN882231929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6187d233909fbc4099ad4a2d01952f132dc87275f3ec092b547651206686b54. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZN882324617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6237746921cb68091964b973bb9bb835d06bb1363bef700ece47da67fbf21f0a. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QZZ662310708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64841e2aef36ddac37c900f4a575af995f3c5685bae5c8e91fda490b5df9ed5d. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T16:28:12Z), 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/QZZ662485985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b8b960b9faa638f25e2538187ea5f56de80b2e464e48e078fb6f6de7043079. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZYFZ2421691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34de786e0626eb5ed47b5cbfcfedda39bc98ff5b006a356b356ec9236c68a63f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZYFZ2469218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f7d596faa663b7b40300ab8b4a2544419cd847c101a8f7cff03861bf19cc3a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QM4TX2561014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492be6a83cfc98193bc260d124d0eda0b83c8e2ecc0929a92002d4a452bad8c9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM6P42529349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0563f3156c6ec0c3674c26bb326a0874cbb8f58ae4e7e8b0280c091f88318a. 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/ARUM72200093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1707504cf29f581e12065fa2b03668798582311d1ca775122d2072163b8c1226. 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/ES71G2330318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1707504cf29f581e12065fa2b03668798582311d1ca775122d2072163b8c1226. 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/ES71G2330318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6256550237dfacea1812084188fecea5d61943c682cafd1af9b344da7dd41085. 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/QZTVM2229189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6256550237dfacea1812084188fecea5d61943c682cafd1af9b344da7dd41085. 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/QZTVM2229189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9014253e5f478bcc8632e50abc6e806757afbae31dedbfee7fd0f5953cdcf201. 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/ES64E2484240.
Minutazos Vol 6 Freestyle Master Series (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb280592dc68e0dac3d874e035c51b1228b5e335f31afda6a7113fbfa7ab5b7ff. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ES71G2330055.
Mnak Vs Gazir - FMS ESP T5 2021-2022 Jornada 2 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a92cf558e28470f5e47f8e9a8f21668c7f739143b3b5d733738c7f49453ca9. 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/ES71G2207330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e341b12b1e7c4842dfe402f40f609ee9a09d8c36ab2b5a3a6966e48396bfcf9. 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/ES71G2207332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59cb9d781f2ab77e267560a831375a03848d038be873cca191124274261ee1e5. 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/ES71G2207334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9fff42a08fa798cb0f64922c5306d6b8391e293119528b4704660ac361bd59. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES71G2207335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37024b0e329e2d325c5fb3ca61a040086e67010acb87bf489a7aed3f331c8ee2. 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/ES71G2207336.
Chuty Vs Mnak - FMS ESPAÑA T7 24/25 Jornada 4 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28321cdbe98903ba6bc4b16006703fda9776a13b51a6cd300d848c6cc439f978. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/ES71G2501850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ee4d5821588fb3252ca723d224c88b0199d37791b6031144d4cbcbdd45110b. 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/ES71G2501847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4405131c3d64b793347a86159f1d486d69d522ca163e4842dd1fd8c231a775a. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/ES71G2501848.