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 0x8b73ac62d9dd2c32a7c0d67b2555c1f0b536daf56618753a8a158606c686a1a0. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc624db3-5bf3-4ba8-ba72-22637e266a62.json and https://artists.proofprofile.net/proofs/artist/fc624db3-5bf3-4ba8-ba72-22637e266a62.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 0x48500f09e49e00411082148bfb07416f1ecf8e296abb7a4322064f2b43bc104b. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:44:54Z), 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/QZNWY2456161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10fa0c7632f00f96f40c0f4e441e0e9f3177bd98734858a2a1e18b1a8160e21. 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/QZTB92410353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4ab53870a1bc7220ecd638f1c2492a39fa985b23b1e4f1c3df2c1bf1840923. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:45:42Z), 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/QZWFK2413308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb918016b3269e202b8604b374d887ae222e69affdfa59cc7a8e18221b7694eba. 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/QZWFK2413309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1337d9b7628bcce27f8fded5f90ccb8bdd3250734583ebe95220b94e1e8730c. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZZ7M2433739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5283fccc831d89c35f72abb2859d3a54072e67e3d606007f93f4978c6804c89e. 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/QZK6H2549542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1337d9b7628bcce27f8fded5f90ccb8bdd3250734583ebe95220b94e1e8730c. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZZ7M2433739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29abef283c2f0e9e433649c37c97438fdc70c83e8d8be205d8632b78cd1be07f. 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/QZNWT2538367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c95e3057ca6208b44edf3322076e0fa0d6d2a871d1841262bd4d4d05fcaa891. 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/QZTAS2586752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23860fbd9d965f53e380992ba7f245b97c6564a434e212804b90c0b0c2fc860f. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:44:36Z), 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/QZTAS2586753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db559ac6b7ac19a9c391747f7d4372aff8b28438607ff3e73c109d43c6e5f53. 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/QZTAS2586754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadf7f70e2a84173e56fc007612721670a9ee2eccb020d1c1bf56cb010112051. 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/QZNWT2538361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1337d9b7628bcce27f8fded5f90ccb8bdd3250734583ebe95220b94e1e8730c. 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/QZZ7M2433739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad67a089d8049e2f07f5a0eee317888db72d91d8df52169c470985e9260aad9. 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/QZNWT2538362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ccc6f01314987b6b622d4dd3bef61c027009fa0a70b24841048100cd162f7a. 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/QZNWT2538363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450691a64ba6660f234d62971eb38ed8581d043d5ffe0f91643de0f246d4a310. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZNWT2538364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddde2682af8e127391c030c0b8a2b4503ee06f62fba8a571a980efd29507bc61. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:44:26Z), 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/QZNWT2538365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cb12f5c70f49fcbc7bf14a4e67a5fd65ac411783d94090e70da28d05064a41. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:21:19Z), 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/QZNWT2538366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29abef283c2f0e9e433649c37c97438fdc70c83e8d8be205d8632b78cd1be07f. 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/QZNWT2538367.
Dear Diary: I wanna be a popstar! (Get famous, do drugs, make a lot of money and die young)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db16fe95e9dee842715c808bd84fe75e3123ae64d9791af73ac003983890ab5. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/QZNWT2538368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e9c65737600437179ebbe2a8fe89af0ba45f54fdc9d323088b34c6f4e61d84. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:00:34Z), 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/QZNWT2538369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c459ea43ef86847ec7aed9d5c7b7eab71eea9240e167b6984a50cf117a97b4. 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/QZWFQ2503099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21086ebcdc127e11b5c5397317ef8c0e4b8b3e623c24d39b5c88ad63e00b3b92. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:07:57Z), 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/QZWFQ2503100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29abef283c2f0e9e433649c37c97438fdc70c83e8d8be205d8632b78cd1be07f. 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/QZNWT2538367.