Dusky is an English electronic music duo from London consisting of Alfie Granger-Howell and Nick Harriman."Dusky: Outer", Pitchfork, Accessed 5 November 2016"Dusky's favourite tracks", The Guardian. A
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 0x194409f73136839649882caecc00fd897ac76b20148639eac1650c3513b4f533. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b7e65b4-ef5a-40c2-838d-7b769bb874b8.json and https://artists.proofprofile.net/proofs/artist/9b7e65b4-ef5a-40c2-838d-7b769bb874b8.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 0x619a1f4786ff8503c8b058bf45a5ab0f1e0a14d6dd06b46a5f06e19c2491c085. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DEVY92200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03469bd63dd1d798a616f5cf908d79ce11e4b00d91d1b44f6ffb74bcf50d19ce. 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/DEVY92200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922220a06ad738aa7b6b943a630bbca60f54f1ad4ddcdfb8dbcccb29bfeb27a0. 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/DEVY92200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748474faa593b5877acd314643a7f9a22251c57565b7517fab6daa0ba18ccf3a. 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/DEVY92200062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d02f023013ebd184b46b82140ba9ebc6172290fff918fc9e1969d8c4164bd05. 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/GBUM71604056.
Pure Salinas, Vol. 5 (Compiled by DJ Zappi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338e470af7cb935314c8d01d62a4312048813d9dea187d868a1b0270439890a8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBJPB0500377.
SubSoul: Deep House, Garage and Bass Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab685c0af3f1777e9ead6ac5f348bb0ec84cca2f471b947798a2d039c86d9489. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US75Z1210105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb1d96af50d7a0eae17f0328a188bb912b8a5422b76b5cf329288c6dc78056a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBJPB0500359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e10fdd5c5953aea611d5bde1b6a2925898b14c4e1dd9ea76dbd8b5372c1c294. 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/GBEWA1300611.
Eros - Mixed, Interplanetary Criminal Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f933b597e276d796e0ae5a331550207a6e47c2555336e5b180bc136f618555. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBEXH2400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33f9420f44c07b7399ac6729da68b931e65cf8fc4a4edf7e05ca29789c18a1e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBEWA1702653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ca0ec2fabd252f9044a62e4cb77ed960d77a4163ea572d9de24273fae1e5e1. 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/GBEWA1300608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701b429703430d9b8fde49c2906984e1ce4be5052793a9ef107b52f26ef74cf8. 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/GBEWA1200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc1ab49766782c9d98d2ce5db712e1b8a0097ef6d6fce55c3605451201ea56a. 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/GBEWA1500651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c34473b1806ed731e9f9f7242a373cd0c583d6396a5b4f1585696d80686b0f0. 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/GBEWA1200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d7df931ad10136d3e900f02c79e934fdfa2f8c830d54b01af0b984fe652ff1. 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/GBEWA1902984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ea9425970e8a943e999a9e46687824d57928313783b964148cc181e12af2ef. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/ES8741909105.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0f0d6de44dad735e85aee4659313a327eaa7e7a99a7d48a3c569312fa3c8f7. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/ZA56E1701020.