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 0x1763ead86e9a988813c4eb2e956ee3148cfddf63b7a6f58b3e4003cc5ee29c7b. 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/15197b52-d496-49bf-8f74-8fa35ce30a48.json and https://artists.proofprofile.net/proofs/artist/15197b52-d496-49bf-8f74-8fa35ce30a48.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 0xb1b1cec1e123ff3ab4e2944b0a5a334498f08289b4fee481ca54bc40d5d21d05. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM7281448330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23f04a616c503053d68cd9b5eb6c9140b241bd1b878491b36ac32b1f97293c9. 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/QM7281448336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020572fdac0c554ca5acf12fea7cef3f750ede68e8e2952611355d74eaabaaba. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCABI1246974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd349ff6fe7c8f449f67ad65f3e821346d63cce879f6c8561539a9ab89577587. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCABI1247047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e1fb1d4d68e9b9a3ee92c09305c7ed4c3011eac7dda168d1580e4462a59161. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:34:57Z), 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/TCABI1249652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef96b6c6bd82c2d6025d39a954377e9a314151fce31dc3ea7b1b5f39bd2bdc8. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QMFME1944017.
Popurrí: Cuidadito, Cuidadito / La Bola Negra / Estrellita Marinera / Ojitos Verdes / Ojitos Negros y Chinos / Prisionero de Tus Brazos / Amor Bonito/ La Mano de Dios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c7b95fa25df2648fc70bb3a3e949b4f81181d9b44fb67c9a8e614c92e9f92d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QMFME1944024.
You Belong to My Heart (feat. Willie Nelson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08dccb2e80cb1000ff3dc0f52e1d66204ef8cfe87ee99d949c672a578c15032a. 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/USSD10104520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801f93b2e09b346814269c35cf7490eef2a13c11a15644ada7fc9082cb68c7b3. 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/USSD18900789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37f94f31f4f51307b28c7e6d4cbed9a3982a6f4b8b206a84c04680747028015. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USSD10005224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39a8834d4493b1031aecb34f2e8167f0693a11c8aca17c22f875494a5381696. 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/USSD18801030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bf68db2bf153e495e57c5fc09abc1579a1acd104728dbc0d3b46680291fa66. 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/USSM19928714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf956a2ffbbeb21d86f018d59c4689140b6012245e940d79f7dce873db5244b17. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/USSD19100784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec40a5676b101603ade2fc46a5225fd6304736696b61855b27920a6adb5af664. 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/USSD19100974.
¿Qué Te Ha Dado Esa Mujer (Querido Amigo)? (feat. Rubén Ramos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e9fe7b35e4ff7e308e09c8ef27e00079e840689cbc138bccc196e883ca0a94. 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/USSD19300786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4044b720f58f2319211b6684629900998f94be71fc5cb4438a5c8498b31306ce. 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/USSD18800785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d6618c625b01d189ec180bdda1e9f6da679f53e9190430760363546fd07421. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USSD19300787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae5d71d3ef1e249e3bc4889bbe8cff11d6f8704f564961822709607a69014ca. 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/USSD19100257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba728329afd0850957ddec51277a8ff154ccdaba6c2ea7132facb411640cc87a. 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/USSM19928716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08dccb2e80cb1000ff3dc0f52e1d66204ef8cfe87ee99d949c672a578c15032a. 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/USSD10104520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d6618c625b01d189ec180bdda1e9f6da679f53e9190430760363546fd07421. 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/USSD19300787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e9fe7b35e4ff7e308e09c8ef27e00079e840689cbc138bccc196e883ca0a94. 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/USSD19300786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9644bacbb69b366dca256ea254cb676015b8b6a5753532d415ca316ae2da53da. 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/USSD10104501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fbbc200b9c1f8e345480bbaf2ff2aa212300cc185f4702ea97106422c92ac7. 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/USSD10104516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce9375c26f89c06f41945b5524cead2a953d7b8909331180f8679edefae39d6. 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/USSD18801034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b246a3235696c11ce042b27e9065b0d16c0597bde8ee03fa6a45b55b69b981a. 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/USSD10104521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf956a2ffbbeb21d86f018d59c4689140b6012245e940d79f7dce873db5244b17. 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/USSD19100784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba728329afd0850957ddec51277a8ff154ccdaba6c2ea7132facb411640cc87a. 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/USSM19928716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d6618c625b01d189ec180bdda1e9f6da679f53e9190430760363546fd07421. 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/USSD19300787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9644bacbb69b366dca256ea254cb676015b8b6a5753532d415ca316ae2da53da. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USSD10104501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae5d71d3ef1e249e3bc4889bbe8cff11d6f8704f564961822709607a69014ca. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USSD19100257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bf68db2bf153e495e57c5fc09abc1579a1acd104728dbc0d3b46680291fa66. 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/USSM19928714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce9375c26f89c06f41945b5524cead2a953d7b8909331180f8679edefae39d6. 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/USSD18801034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801f93b2e09b346814269c35cf7490eef2a13c11a15644ada7fc9082cb68c7b3. 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/USSD18900789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e9fe7b35e4ff7e308e09c8ef27e00079e840689cbc138bccc196e883ca0a94. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USSD19300786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101379252a465175938ce4e7eed17084ad77ef983eab7bc26fe92ed5087c3650. 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/USSD10104517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4044b720f58f2319211b6684629900998f94be71fc5cb4438a5c8498b31306ce. 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/USSD18800785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b246a3235696c11ce042b27e9065b0d16c0597bde8ee03fa6a45b55b69b981a. 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/USSD10104521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ea172207d516d1691a50aa223854e304c8205d3c37661489cc5b29508d9ea2. 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/TCADT1876167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec54ff053edcb854be2f6b50da3c10078cde5f39cd13ccb3144e4800bee8e747. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCADT1876178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59f8ecec85178e5521195374af1e486a1f3e9cc81797ec5f8e37af72beea601. 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/JMA020600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba728329afd0850957ddec51277a8ff154ccdaba6c2ea7132facb411640cc87a. 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/USSM19928716.