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 0x9a56cd81f1caa1f05c87fb1cf6f396f89da953f020a42ec93c6b5fc0fa767686. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8705b318-f2e2-471c-88b0-b82643c75175.json and https://artists.proofprofile.net/proofs/artist/8705b318-f2e2-471c-88b0-b82643c75175.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 0x171bb0aab2cf21f99db1f83117559b558ace4213818b0f94f7dd78ac62c4f133. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USAGX0505367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba47cbec609b4b9766f4da510eab7aca80c85792f349ad2b7714ce10d3627fa2. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/USAGX0505368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00294615606b2ee274325d1db4169749068169c588153bc6fa7d0cd27f67d528. 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/USAGX0505374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa6a446a9e820066bcda4bc93513d63eb1060569a601ac9f75fec3ba031fcbe. 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/USAGX0505380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7056f847bae38bba0877c2168e5c31855de1db6e5f6875ed54a13e83e228fbbf. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:16:36Z), 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/USAGX0505381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82a78428d7abb59bec251eb9667a4dee669187cf954a8759ca6c6aafed5cf06. 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/USAGX0505382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4a86d8ad49887661fcd43bc730132a2f00d24e9cfc37693c84ce21f2e3345a. 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/USAGX0505385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424a944e792188f1890877045407b7673c477a4d3983a39b806390e452a66327. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/USAGX0505386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdef965812cdc226137fcabdca152a0967035bba01d8cdb5176dcbc79664842. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:07:10Z), 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/USAGX0505387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228c0ae83ab88fd107fe55f45748aab3fa453311d4331cddc2d0596e5992f4c3. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USAGX0505389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47907bce1437385d2d22b3c9262a45214f7b0e893610ac469eb9a78849e6e4ed. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:23:07Z), 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/USAGX0505390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155b2d434e3d68af82b6a8506d3cbb1c5f5d90aa7f9a44c31e6b68b639589780. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:35:08Z), 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/USAGX0505394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24907d528b9e6459ad978ccd739d191d86ecd7bb17a539a8ee5ff67484c0c68. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:13:49Z), 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/USAGX0505395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c5ae2cebd3ffad317201d65d3f4787c1a84ae1b13ef088c2423a4049294647. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USAGX0505397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97789de749b370582a778109de1ac274eaf9ef86a772ac1d6bd4ca87de1b1845. 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/USAGX0505399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x763ec8c75cf089857b47add07eb3eeb11adbf74c0218751ea3817eb777062eae. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:02:45Z), 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/USAGX0505401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3996c593218c81d2def417fa2415170e6563be1cf1b9479caf21537149b5939. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USAGX0505402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f80675f90cdba48aac882a1465efc84e1c363edd4fa48f87fe09f26b949ec5. 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/USAGX0505404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48078f40e0782bea3d8e5db0c6e8963f86412929ea40f4b11e5d0c9eb8426147. 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/USAGX0505405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb405479d98ea68859d12b4e52a70df9eef02cd53bc183c3265c752dfaeb4fab7. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/USAGX0505406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8732ecda86b618dab4843da6cbfa8cfdc85e8a67b1f235242d4fcdc0957b3e5a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USAGX0505407.