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 0xdd31ffd8cc7ed3f01b850900a4b4173b2a273d930c576f19f8172a0c2dcbd963. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06578602-0165-4fbc-af93-6df616d1f30d.json and https://artists.proofprofile.net/proofs/artist/06578602-0165-4fbc-af93-6df616d1f30d.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 0x7e56932331d195bf9ad14981f32d11d1cb063d95650819e4952b6e80fc042ed5. 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/QZWFJ2304379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ae44d9024e8e82dd6a04b153dd6355cd40032637f2de4dd8bada7f8a319325. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/QZFZ72413270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9609a8a0510b2c8d7fde06cc25d4980ebfa872ea8f671f12d55b46ecc87306. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QZES82460534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcb06efbe584bc7393df9ffa0223392936243867a4949b2115f90bec6d6456f. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZMER2474566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eadc13dbde6a8dd8d233bf67a7fbc18d8e707a49cc54d9045a60ae28bf96d34. 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/QZPLR2482011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219a6ddca39430f582f99970453f551fd9a76cd6aa8f7b5193c6e1eb1552866d. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZTBF2439011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad7088b4641ceba7f9456d46e0188a09e5266e5d2b0b4030d8e84d63871cded. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/QZWFX2412861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d21844bb60f2f8240c70f7a35df19c2a38aa87a932d142d9b8bcc814330cb6d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZZ7V2473444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d11b9ea16b6899905d73bc811096b5ebd0a245e5748401d1c42623cd37f24d. 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/QZFZ42536888.
Kaer Morhen (From The Witcher 3: Wild Hunt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9409a0bac9f94c1fa37bf3938b059ea6b749e7f195432917ae9b1e0c5e373980. 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/QZHN42559892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf84475806dc391f88a02d88cd4313c2b2ef61fb1dd2681c540adc78c7ec5db2. 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/QZHNC2519274.
Star Wars (The Force Theme / Across The Stars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4feaecfd61a0333b41a2582d93acf16d3348902d5f5958b709723ceb2ead84. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZTB92552819.