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 0x53f62b4706ef745fce1a14f4070fe2ea6a9b56b933111c8c69008971c491ecda. 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/3f367184-45a0-471a-950b-ff1ef971573a.json and https://artists.proofprofile.net/proofs/artist/3f367184-45a0-471a-950b-ff1ef971573a.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 0x8a6a7dea0f611f97a61faf1644f26a5e9c10b5982ceca83e1f600891b36ff520. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZMEP2008701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051ddccc22a8519285194cfc185b7c3176a0f26fccdefe0f8aa1746baddf4005. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GX4R52269468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa843247a584531d6fbcbf78a77b30ada4a742577fa7dfcc3a952bb80bbf60907. 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/GBSMU9604499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16db4ac2954152aa058b0d00101472f4fbd2af3925964d9b037267c9ca442cc2. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:50:05Z), 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/GBSMU9604677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ba47f4c56f663ae5b599a960ff4c1281724b19a9baaab4589315fa2ae549df. 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/GBSMU9604678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b430a63839fc1f155c44477eb381f9b12ec87a3308d5b4947d9e7592d560f1. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/GBSMU9686517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c9bbb7bd7c94e7ceb1acb85e49ec2e7900141a7ecefcd09810632efc859781. 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/GBSMU9686661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880ffe6a4928e809547ac7c35f682085f8e659dee0b1488e11564930a430d6ed. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZNWZ2123808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735536847454eb3b56665ab6ce95b352eb453a11bd9fec46e70fd98472bdbcb2. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZNWZ2123811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf5b95ec96246b5845b16da02682dd7dbdb637d1bbd4a6d55770b0e8c906500. 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/TCAET2089437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe00e6ff711cf6d292067c27dafa0c57ec0b4cc16e7ba117c7f968fe9da38d85. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAET2089438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95ed4a856f4a6e5afa47f6a4499b4b0e199c74d287fa46266f16cf3e5e2914d. 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/TCAET2089444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb515a71c2fa477936bdefce6c6dc2d526244a5acd590785a0f7a13b49fa1da5. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:49:27Z), 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/TCAET2089448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9146b20c39bf7871c596bf92a649a40c960581f31220598a125fa43b24b00adb. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:52:24Z), 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/TCAET2089880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8a12f1f3ce91f7c8992d3a21ec0fad051d71aaf5b86d9fa69ba4fb9232d1b1. 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/TCAET2089899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739f9d4f7a550ff03a8ef7d91666fda0f4e7b5fb10e616a1bb2419a99f711367. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/TCAEU2047289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423a48d81a0c6711955978996e47792038187c0a64583b61e26cfdb6636bf2c5. 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/TCAEU2047364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e0899585b86e2992e1780a8e3a70f28be2ea0dfda65e84a0992f18845f41c0. 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/TCAEU2047375.
Homenajes Y Canciones, Saborcito De Sonal Kokonob'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd01129d414ce2f3f453ac33e91a1538a8389f9a8e3a3bbe9dc4a22f8731998a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAFB2092021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5f7178e12e2f3c09bf6e7f5b25e29034bb104407517343a4cec6687c96772c. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/TCAFB2092026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dbf60fe789262e3fa8be59837a44852f05124938eb93af1c39391ee3a64bfdc. 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/TCAFB2092031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7a46a3307dc61d9b3ab85705af4332396ba6a97b082aec5c31130e2e9b2262. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/TCAFB2092036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4580595adeb08de6609013fb013ae298f45157affd3e60d94f62139a60163d3a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:22:39Z), 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/TCAFB2092048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa66d4e729900c42472a9f5e7073da6121bae27b064721445ac74256b80f2ea. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/TCAFB2092052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe769f814b5a91ec7f8d1ea4160868c824c2fb100bec046acef47bcc82b9917f0. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:51:13Z), 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/TCAFB2092056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9767420794b841ded5cbf3cda8745a8a1981e8af2351c82360f4aebcffdb496. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCAFB2092062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa570f3bcdf6dd5165a75559e4cd7ad2cd5d574fc3cafc8f0c99afbe83c05fc. 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/TCAFB2092068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d180eea5586dc8e9e7ebde9b74d944178095d6d003b5002b0c83f74b61d952. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:47:37Z), 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/TCAFB2092076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f681a721298fccfa27866c4e867390323eee01584fcf6e7ab83b6e0c30114f7. 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/TCAFB2092080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae82e33766f443f470b8fce51fc4e474544dc40b3dcac2cf0ed5792e32b94437. 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/TCAFB2092083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed71e618c7b7bd8aa5c3ca94a70a52808f2dc4b08c392ca11f08aaddc146f9f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAFY2194899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43a437b431c5c76bfaeccb6fb1a53fea82b6dfd9d5108805d559c01377f36b4. 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/QZFZ22235475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a129e333a18cd0befbbe27466dee454429784150a775b454a855b3ab704798. 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/QZFZ22235477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1eea82714ad1fb246e8c0f4b85c1e03bf84a26c790f967bb94f91c066c9ec6c. 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/GX5MX2259703.
Nadie Es Eterno homenaje a Juanito Hernández
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0437a15b8ef5cf179172d6ef395f14e2995a092b76b65d7dfdb2d7afb2aeecd4. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:01:39Z), 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/GX5MX2258558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4e2a311f5f7bc434f899a5c76c44d37dab90ad413de76f9d412b923ebe6fc1. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZWFQ2372546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679dec8cc4bd62b254fcfc34de04929e5325756adc49100868dd56904229174a. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:27:47Z), 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/QZWFQ2372547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b5bbdc74ed113b7090e751b3523f25c69f5e7f135d31aff27c117706dabe5a. 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/QZK6M2499712.
Alegría De Sonal Kokonob' & Club Amistad
Sentimientos De Sonal Kokonob y Club Amistad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0749d925583b63d79fa70d622b563b59f8f1ff7e045e8f24fb8495d0295af6cc. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZES82519350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629b9023e7b49693874c0ccc61c4de93d1751231677276056f744a5044fb1f59. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:29:30Z), 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/QZK6K2539029.