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 0x7c60f9f4959939ec6b85ea765773b5019191d77afbf37f54ce5f9691c5d8f17b. 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/c058396d-175f-4c5a-9704-f7b9e34a3445.json and https://artists.proofprofile.net/proofs/artist/c058396d-175f-4c5a-9704-f7b9e34a3445.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 0xaeb9a1dadb3cb30e952712d8461c11cfe9de0d5383003ae637fce5517a77bab8. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:46:44Z), 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/QZ5AB1609243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4326b9286cc281917efafc7083f41fd4546ddadb3ac4247c4f17d4ec5626916. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:29:17Z), 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/QZ5AB1609246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6239e70a000b1c2a3685d6a32422ef52cecf53d7324f445e8af01bf120790a. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QMBZ91979192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff885f1ca10ade21e334700b2a0ccd305b2226f8788634706cdd213fe7da931b. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:34:40Z), 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/QMBZ91979186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fc788ec2f29f9f585f9f1ae93a6089900e451d9bcaf9cc15f93da7ed964cce. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QMBZ91979187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44e5bd9635786a3290120e60a7c90f604d0857dd026f4345e079f23a8b93f99. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:04:18Z), 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/QMBZ91979189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1df316c5d8d1fd37be6735e1e425ffbe154df8b56643c1a3f8cb32f7d76bb8. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:30:24Z), 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/QMBZ91979190.
Ode to a Conversation Stuck in Your Throat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b8efbb10d2126b9e8e1de8e712cbab8655c93d39b7fc42b40fd11db7d166bc. 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/USQE92100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b341058eea3d1286e261a024eec90b8b37c1314264f9af96484e9904cd05053. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USQE92100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b761a7e51532fb164f28e3b78f8df929233b9af9e4329fc64e8c9cb53e4d4fc. 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/USQE92100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b341058eea3d1286e261a024eec90b8b37c1314264f9af96484e9904cd05053. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-21T09:01:25Z), 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/USQE92100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b8efbb10d2126b9e8e1de8e712cbab8655c93d39b7fc42b40fd11db7d166bc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USQE92100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5633f6c23b9af92d76fd60614707da0937b110fccbc6ea5897ded873bfe22900. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USQE92300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4b56265915ed05efe7f48fc064c9d2e6c027912f6080fe59b4eaa4d478a213. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:05:36Z), 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/USQE92300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5633f6c23b9af92d76fd60614707da0937b110fccbc6ea5897ded873bfe22900. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USQE92300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604da5a1123a1b9c7932e493093e2f10e8cb7c9ab0e60aaef1460f7dffb6ebad. 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/USQE92300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f6d978f619f777a20ef65de1803d2718aea3e5448560e8c6d98ecd2216d004. 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/USQE92300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4b56265915ed05efe7f48fc064c9d2e6c027912f6080fe59b4eaa4d478a213. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:09:38Z), 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/USQE92300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5633f6c23b9af92d76fd60614707da0937b110fccbc6ea5897ded873bfe22900. 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/USQE92300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5633f6c23b9af92d76fd60614707da0937b110fccbc6ea5897ded873bfe22900. 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/USQE92300048.
Cigarettes & Wine (feat. Holly Humberstone)
I Miss You Already + I Haven’t Left Yet (Deluxe)
Notes from the Archive: Recordings 2011-2016
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf354533ab3fd5c1f63e9e383cb5345e30c43dfc9ccf2988c86073b896dcd057f. 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/USUG12003496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf354533ab3fd5c1f63e9e383cb5345e30c43dfc9ccf2988c86073b896dcd057f. 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/USUG12003496.
Notes from the Archive: Recordings 2011-2016 (With Commentary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf354533ab3fd5c1f63e9e383cb5345e30c43dfc9ccf2988c86073b896dcd057f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USUG12003496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84f344531241a85167e243a5b6f4f376087f63b21f9d568ec8c2d46b7a381ed. 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/TCAGR2235029.