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 0x8095560273c22db7eb0be1e408624834456d280e477e65fdd90f692af68ec5ce. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/134c82c0-7726-4a97-ac39-0d6aa62d4c5c.json and https://artists.proofprofile.net/proofs/artist/134c82c0-7726-4a97-ac39-0d6aa62d4c5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Killavil Jig / Fox in the Thatch / Peter O'Byrne's Fancy
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 0x46d2edb8600b189ba0c4025ac38fb430cefd74b68450c1050a7866097ea7cf6f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/UKQ2K1800101.
The Walls of Liscaroll / Rooney's Favourite / Connaught Man's Ramble's
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cdb0a6dd9ea2fb03fb10be3efd313a4624e9582a0743ea20e482c4b4d86c82. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/UKQ2K1800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34f172ebbf997097b142fe85f415d0298fc7c3295d7eb49d4036d4f707f9be3. 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/UKQ2K1800104.
The Humour's of Lissadell / The Queen of May / Sweeney's Dream
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd909efcd32d8917df47e61399eb292743f287f2175ea1d008267fd7866a48b4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKQ2K1800112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9fae7f2dd966925f63fca6e177e956165dde7cd72189f931f58c7ea86464ead. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/UKQ2K1800102.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
An Buachaillin Dreoite / The Lark in the Morning
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a00a2eabb8825832031e09afee9ddb1099c61cb90c88fe7a6bb0e31bcf9ef4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/UKQ2K1800105.
Colonel O'Hara's / The Humours of Westport
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f373f861c408016569a2bdaca0e1b7b7d254356648ca78e80ba500e2af7a764. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/UKQ2K1800106.
The Wheel of the World / Paddy Murphy's Wife
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4783e596921877500c08181d3b941e21aec28ae814ca825dbeb6d2f6bf37d680. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/UKQ2K1800107.
Happy to Meet-Sorry to Part / The Stolen Purse / Maude Millar's
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7491249217d5843ec3bd8a262194491c57907279e6bf37e0214f388138d1e662. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/UKQ2K1800108.
The Galtee Rangers / Meet You Down the Station / Dog in the Fog
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4b20f72570eadecc9e0228302a2bde0802b368003f7377f9c307f8eddc37d9. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/UKQ2K1800109.
Black Swan on the Turlough / Boys of Tandernagee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2160d688b8a3bf6f70e05c9f4b998e4a78ccf091dfbfe3135bc17df3ac8eb5c. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/UKQ2K1800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa0bd564e796546522a03805c1ea28dfec70f096c8398610f1c1ef2e02ffaea. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBGXD1000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11697e7078ccf7dc356d8b31202dabec3de4e8aece552524850403474d740291. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBGXD1000021.
Transatlantic Sessions - Series 4: Volume Three
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd0ec6355cad3dfbe0e79db71a5a5cd85be27e523bfb42ed21cad2d6dbf7abf. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBQSK1002111.