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 0xa86245fe531bfcf463db6011fe7aa8b53db6decfc0d9aa38b8f23d184a397c63. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20e5891f-58a3-4a39-b676-bb581af25a77.json and https://artists.proofprofile.net/proofs/artist/20e5891f-58a3-4a39-b676-bb581af25a77.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 0x1d23ffe9ea1bf89c8f02d2744888cfe4c09ed43b2145bb939be7f441386a37b3. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/UST8K1629157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41f1ed137e27817966b5a229305639c06c72d15e133eba2bc74d8be39267362. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZANL1754343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767f8037b03ddf94638303d7eb5979115a7a3468154f17fa1a2cb6d5a924a609. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZ9JZ1726282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971ac863436a7a99dc2af22fc37d2d020bb2996d7c12e5f9ac5219ef2b0ebd7e. 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/QZ9JZ1726285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8277d3f33fdd79f3f1c4762f49ca6750d4b7f93f5b0345cd8bd6aa545651fd8. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/UST8K1629301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc804cada8590a98f831da7e03a6dd4e97f7523fa7d3fc5dd2128a14b2aefbd4c. 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/UST8K1629305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aeb2bd616f93172ba5f7e4b79e610f1b692079c03320e74a5b5d922922a11c4. 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/UST8K1629308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5122e32dc0603a0d8eaaf7e5c03336656952f72436af02df2976e3847ac9100a. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:47:00Z), 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/UST8K1629310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d819ff63d77584fe27ddd1c9266cbb4ed36c10f1057bcf588f6b0d18985bab. 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/UST8K1629313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e063ef4a667a2d14b4f6d677fc5dca0d81d385ffd02e6fc31ee9d56e480c3d. 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/UST8K1629314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93e2291268bd625dada6df843ef099f3f12a61395194fac306c03d92a9bb8d9. 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/QMPKX1663918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3feb965d5807d634f108bd2588da194a2c2f8c7bcbe36ee3d202076a356ca11. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:18:41Z), 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/QMPKX1663919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe494eb587e0cf5a36cf404aebd270924518915b6b5628a7bdbfa29563c3bcd3f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QMPKX1663922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007bbae74afd41236dcd2a0f2ca49512cb146e5488810f3e18eda6af0d746763. 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/QMPKX1663924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218c1998e68df44fdf2cd707aa46a678486a9a1dbab3541c5efcf6e5196b5e96. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/QZ9JZ1710329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b87e24fad6b8b1a37bb15b68e5146f0844496b13e2e74581218f7ce26144f7. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZ9JZ1710332.
Serenata de Navidad (Especial Musical Con la Familia Devia)
Serenata de Navidad (Especial Musical Con La Familia Devia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d80fa8013223822135dd90987dcd7703b69dde2d8ae025a65832626c72cb1a. 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/QMPKX1688689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180dd922d7560b69fe045afe825929b066f3c293d84707f806a0be5d183b5385. 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/QMPKX1688690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbf199190eb0e5bc1f116a1ac37a7179d871c45a927efe5fd7f7b7a223382fc. 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/QMPKX1688691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f48a2cb8c8f5fa43c96546f1390ac36fbe253a902cf5cd2be0ee511afd0db1. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QMPKX1688692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f413a9a30b63ca86d95b485f59b6923d567316834a8ed7ff5b68f5dc17bbddb. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:10:18Z), 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/QMPKX1688694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e14a25964ea440dc2cd7c8d66938e0eb6c79153abbc4e9e3efd6294592cacf. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMPKX1658039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1414ec10bbf398125924b9d75b1bb9eb31ee8d2cc89cdf9ca79d5539d06e7e4c. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:02:16Z), 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/QMPKX1658041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1ed3bc3c9d8d07aab34a220955f647adbf463b4788e0bbc6f408fb504400b1. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QMPKX1658048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea84f9a97da8ec71bd6bab851ad8efdd2e41cd59c27a233924a54cd9746f2b1b. 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/QMPKX1658051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a6cfd7d31b355675115b64d9683ab3dab309bc9d0ce35b2ccfe8a68fa00e96. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/UST8K1629337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ffc349d6d44ef18eeb82cb676beae8307b41265f3ab800d87d4ad07c3e3ff4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/UST8K1629339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc133fcf47f0d9f2c1d1b152424d70b6845bb0e2616fc97f4114334b89eda676c. 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/USX9P2081595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ce82ad547afae52932afb794df03f83e5c18308cb2459d401053e6a259222e. 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/USX9P2081597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf227d85cebe46da26a3d45b189a16579ed81287bda1f665ffdce928a72482d5d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:46:12Z), 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/USX9P2081602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27484e20cad7126a0b85b3d6bdb586454af0d6d1f9881883531d1d8f1e93609. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USX9P2081603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4e6377cc922ee130dc9a12089aea36e39a84766c6b26bb44665ca67ab07b2d. 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/USX9P2081605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa91aee13f953ca056dc196bc5b3cc3a7efc6e8b775002f8930d7ee8c5efc1e5. 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/USX9P2081607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6500add1074dcc9ec994afaeb5f97bc99dca0691591c4bcf93753f20d321520d. 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/USX9P2081608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe36549030088e416bdc2c97175b6d4684e6ed462881000ebea0458fa2bb216. 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/COA7W1619003.
Concierto En Vivo con Acompañamiento de Violines y Chelos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee77d27c4ce7db3dd70aa2cb953907e88f11286dfef2d645ea3a592b9ff64408. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/US3DF2415969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6bcd1428d1d5374c8a0b552b5c2906b4d0ff2c6fdc75d65ba0d99a37f41500. 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/US3DF2415971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526e0045f2ac9a6d2969b38110c706af9f971ecf7b66fd70fea24e5c0065d97b. 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/US3DF2415975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406fc1813b599f5fdc022daa25cbf2a59dd8f6141d87427d8437ea466938457c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US3DF2415980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb366ceeff3b158852d1151e06b24240f9155a47d3ee051d39e2fb3f8db5b626d. 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/US3DF2415983.