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 0x8da2fdaa3f174d112cbae87994f12952e166d687363ddce99300ededde9a04a8. 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/4e82d69b-fd7e-4f25-aa90-c553225326e0.json and https://artists.proofprofile.net/proofs/artist/4e82d69b-fd7e-4f25-aa90-c553225326e0.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 0x62181fbc482133a70ea72d4eec1b903e161a3c090b017c68d650265dc3f4852d. 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/QM4DW1624901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a9bb0f6644e0bebad1e5afa4489631b208e06d479db847862d5c1a8eba34c8. 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/QM4DW1624902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b80cbc84d726c781a3244715b1057f242158618fe2fb7e95c450bfd9faf813. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QM4DW1624903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb7943234349ebeb22582cc10a4bd5aa614b81a5c7858b19f0580348bfd235d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM4DW1624904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ecde3c1d717d720706215a73accd1e4ca80603aa35e115df138f632bd86e32. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QM4DW1624909.
Quién Te Ha Mandado a Intentar Ser Feliz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79123bf7cfb9dc557bbf12e444ae2c1129f88785347f9e71ca918ef77ca8498. 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/QM4DW1624912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce2d89c6f4de686b4631e5385c94f7a74b72d73b01e5ebb80ca56b55266a668. 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/QM4DW1624954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aeb055dfec6f3a38a2e1bd0e58ab9a21c2e5a7961d154ac0fae617dafc6388c. 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/QM4DW1624958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecea88247d69533b48726ab0ddd34f737450c4f3a8c3c6d67b8c5aa797ffa0c. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/USHM21692339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67405c5987d882145eed23576e3c1c14caa19f7211e4001d23fe918f4ee5cbdf. 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/QZB4J1850663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9cb51c56708de74431a082f4b8238733545909cc9a58b8277f59115e1756c20. 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/QZB4J1850665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284dd55d8c6d099b266e747e127e68e8119757edd4194f40d74b728c1ae9624d. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QZB4J1850666.
La Ironía de Soltar para Amarrar el Corazón
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d0f478077e8c49836f3894b83a3efe5c6208de2209131c39698f38e11eb811. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QZB4J1850667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748bb6353a80b437be2c0037ee54888bacbb160c99fca4940d1eb509a0d3e246. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZB4J1850670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467c30e190601b6c2ab59ffa439000eef34bfecc88da8bf379d2a145584ad957. 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/QZB4J1850672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de0137d82d464c2f2d6f43251ac908bd054e93fc4733291e02fb70f94a13efc. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZB4J1850675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79c730b2b4e839c90172cefd2fd32a210effb3215076294eca5156ee2efc0ad. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZB4J1850676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bde33ae5fa9b17fe689fbe2a273c596028520e6675ce7c2ae2240848f4f34cf. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/QZB4J1850678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9233136519ffb0c1bd0a846e25f2d734f3bfb1bc02a1a1919d90b6f0130fb2c7. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/FR2X41950957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b46b534481bec9d548a5a80733172fb6730a6f5cd1b63cc1137c20d1bc5909f. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FR2X41982275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9555e6e7fb83c4dcaea75d48ab2b5925b39746e7408af824560b44970655af8. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/FR2X41982276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e29ece63b658577240646dde5e820de143733eaecf97bb5a16b1247debdbada. 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/FR2X41982277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe76e2c8dbd65f0ebac575fa0b81dc3c3957f1cbc695bf6e20aa6176c20168f. 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/FR2X41982281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb5fae6617d7ebecc6309986c13a66c84d948fb844e4901157efe52f1770abd. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/FR96X2280597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdeae381e7e5ce205a02d4c9e47c8cd4e020b060aa4fdd466af6e02f17afa2d1. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/FR96X2280591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b90a19e574985087efe10caebbade6755d961f9cb77568629ebd6cb5831ac2. 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/FR96X2280598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3d5a6411c62a09ff2f531f544915c16cb250d347b23eaa83b31514dac547fa. 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/FR96X2280592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6810a52b12bf5ef825796fe783f5324f1db04409f1e48ffcf55b196c872133. 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/FR96X2280593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90b5e0658c9e302f1cad18249eb264efaf9cdb57801301f68c989475b738077. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/FR96X2280599.
He visto demasiadas casas vacías en mi vida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d589c74bccdb1aac24997768a8a43a7e19f902bed5ce8a8c2aee83a6a4b86b. 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/FR96X2280600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d730a8ab47f5fc640eec92242a2b4deb844a182fd6c9c8447bfa929a970d2a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FR96X2280602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456e564efbb6e2121fecabbf2f04e294d4ad91d0276455ae2c51d111c0f9ebf4. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/FR96X2280595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18865739fdc3def599f4fa8bdbf16247f9c4249fd7ed248568272784f38f2cd6. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/FR96X2280596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178e9411eaed9a0c431c42af5a3e7cdfd037f33d7d2a013ff8c985aa20352727. 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/FR2X42296151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6bc31b3c4b06ed9df878f045188932c4f5cb55e6e5a5b1e94c48880deea473. 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/MXD782403028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f3fb92e19c6a6477f2c1b5aea6972a9742af5a6aa53cfbf9ab2bdd73aafde2. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/MXD782403565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec7b7eab18e71000a7cdd555e33b304825e3174e78c164137ecdbf12441d214. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/MXD782500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff2a7e19776cc955abedab64ce4767eeedcb24bae1dde8a5211fde99b1d6822. 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/MXD782500077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d485f04d4cf38d380142f304980eaf74c2f0c2c9320d06271dcad3cb8c2c3b. 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/MXD782500083.
Pedro Y El Lobo Presenta (Live Benefit Compilation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1a4e1ed9769275dfa901fa4f4535feda27e1e106913f6342a1a81ad7500191. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DGA062034875.