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 0x9b72ae8820346f603609d25062812db63defb7764675c41289c21a3cab01e06d. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5b2d673-b0b6-406a-a846-a0736e5671c6.json and https://artists.proofprofile.net/proofs/artist/f5b2d673-b0b6-406a-a846-a0736e5671c6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Reels: The Steeplechase/The Eel In the Sink/Hasbullas Big Day Out!
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 0x8bfbb3f01ba8fdedf1c22dfb31c841c2409d04cb2c48318f1a752bb0103f6830. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GX6AU2200001.
Hop Jigs: The Boys of Ballisodare/The Surround
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbdb479fd9eacc2075bc38bbf20974c08e48a864a10f3989f6e9c194a517395. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GX6AU2200005.
Reels: Dave Normaway MacDonald's Wedding/Eanach Mhic Coilin/St. Kilda Wedding
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee5552b933056c7bc171f8673589438e24528c465075f4374f3e4edf57cf892. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/GX6AU2200006.
Jigs: Father Spodo Komodo's Trip to Togo/The Day the Ice Age Ended/How's About Now?
Cowboy March: 41 Selgal Gardens/Shank's Reel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfbb3f01ba8fdedf1c22dfb31c841c2409d04cb2c48318f1a752bb0103f6830. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GX6AU2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bf02a54f732faac43870fc440653a9ffb20badf4f11ef76ec02826594576ca. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBMJG2330430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef9406d994083c38e6fa79dd0a2e2d5146e6c2baa03778dc6f974395bc7459a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBMJG2330431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f636dfa849a18cd21811eb215427832e3c55124611b94a82e4b81fda6a7434. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBMJG2330434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca223413dbb149c2705d7261d04f50d56ebbad8c83255eb6ef25b94179243c6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBMJG2330435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e86bfc50008d3abd1a38abc7bcae77cc280ab627e84063c4bdc56606c02ec17. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBMJG2327262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0968df5d1b594b99b06e34d56457b4ce61a99fb6185c7dbb642ed3054bebdafe. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBMJG2330436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0cb66d7597e9e1062424dfd14a494be60778db5d6e326f69c52c74b237c706. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBMJG2330438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e86bfc50008d3abd1a38abc7bcae77cc280ab627e84063c4bdc56606c02ec17. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBMJG2327262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed49d46b12cd6b9e40a0ec8a499390a963e322f4aa64a8746eda82c69dc6ac6d. 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/USDY42023712.