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 0x8eb1166c20d668fdc8aa786b184d5986070dc1939039bafd311b5fa082b9df45. 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/673ae716-0f8b-4694-8436-e2b2f8969317.json and https://artists.proofprofile.net/proofs/artist/673ae716-0f8b-4694-8436-e2b2f8969317.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 0x1535cb58c52e60d2aac5c5b7475c3e1d40f224710f15addc9bdedf0b0d59b720. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/QZMEP2084016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8497826551d5410847b8cd2043b4126fdb7d8eda76ca4aadb5da41d9e71cda. 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/QZMEQ2047846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93476aea7763590df64a6c02d13eaf34ce9a2db4b85929937b458ed9f3443458. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZMEQ2021551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0cc82afd4f76596bec7aebcbc6dcf8db22ecce350b287ac645688c21b98d6a. 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/QZMEQ2022657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf730b802fb67fcec421bac42c2450f748b64efec412b7b82549180970be01ea. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZMEQ2092120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a759a62f329b4f24080c31bf5483322c99a644b56e2d53a355d463111fc813c. 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/QZMEQ2094832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ddeb392ddcd71c16ce8b629e39e979fd7e25a41846fd55c8d58387914b431c. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZMER2036942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf455fb1901413f2a38b1afa99d7b734e320014676734e65f22229a4dc17260b6. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZMER2048673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40701a5a6bdbaed45a26f0c823f8f4f0a4ed663fb3cf4ce12ae9f127fdb6e9b4. 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/QZMER2083528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee21e2d8977406a2f62c4f2d636098ed1006ec9fc0e31c2514f20e0606e463e. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZMER2093168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330e14b38a0748084e40853db602097fd3f517265d343fee8581b676592ff1ce. 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/QZMER2095391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f7c9241d221e964f67252c0667960e684c21a8291e5a171a6609c45d7e1709. 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/QZMER2084537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb642cad1e52d43434b61293427a57ad22f4762a0e0de146501de926aebcc9e. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:27:26Z), 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/QZMER2084529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f81ef42c9d73360bfabbc4b50e8d58bc9f0318b3936ff474bbe4d3187b8cd9. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZMER2084530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5cd6b8b30c9219209ebbfaf1ba8f3270fe191ea337d9ef5c75accd99413680. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/QZNWV2008140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47b8e4a512c7f5a1989ea6ea5672f44f6f9e0d89d545b2166c44c0e1adf4eea. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZNWV2009630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80dc5d3d60dfeb1caa9b6885d56f266c26be3aee1a4ee2f9ad28d5c9ae58e34. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/QZNWW2070995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b54f49d06579249d9326105d9bfba347e8bc2ed76238f150c50cca9521f97fe. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZNWW2067389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44099997819363a50194778447eac8b60597def3b88645a25dd552cf4ce91d6. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T03:38:59Z), 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/QZNWX2038591.
Quien me manda enamorarme (version cumbia) [con Grupo Enlace]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1107a6f123070d921d467138646d24cf476549e36b0284ecb00182f9facb6c36. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZNWX2017080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a8f5aa51158db863a6e0e8937e70350fc9999f43077109b4c3fab63e0f44c1. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZNWY2052244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1acb868cdd80f67f594febbd3ba5b0ebd9299e19eeca44c65424403bb05e9cba. 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/QZNWZ2004817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022fb69a473a54c5d7f72b1c8e0ccb5ec51394bc3d2a749b45bb93b0e0d59d4c. 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/QZNWZ2016148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f3100ec035a37ca17381d38ddce91072f422d6efd5d9aff9d6fa9c12a74a8c. 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/QZNWZ2018254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7479d7186bdb91c631fde3953e443ad9d0b4d9b6a4cc3d3990efa028aa986592. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/QZNWZ2018233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7fe5ef0349b330cabe4dc35685a6967fee204ce485a917e45c34ddaed1df2a. 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/QZFZ32151780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef416e4a373a8d6678b15815c3a2b71ac4bec17e88d0476ccf4c8d09168971f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:30:22Z), 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/QZPLR2043937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bc376f1dfbdb158a4717362b01ddbddfee6e37b1ce9a019853b7e070a0062a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZK6K2317064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3238c07a773af5be4b879809bde69dd94670ff0acf49b3974d81efb018c1f253. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZRP42191216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62c0a3903bdfdf8045155989a18f649caabed3110822323178580dc045ae111. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:08:17Z), 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/QZNWZ2337145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0cb703317e35451757b7f92eb74670e31fbb7c5f239897b61af0ad4d460eda. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZZ772458826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a434d98f96831c0b90bfc956fdd873e06062d946f60f84c3c63017c13af0cf9. 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/QZZ772458827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce1cae04b6a72fbca7a19d16e3b93f6e053870a89e922ac8678917a79924b52. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZTBC2571937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa502fe69568e8b1fabe88e06611fbbd44a9a917d409304e269235236ca7bb07. 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/QZTBA2595584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c5a19f3e16a61812a4011c75bf58f8aeceb93446e421794d49696ee7fd7810. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QT3F42540291.