John Potter may refer to: John Potter (American football) (born 1990), American football player John Potter (bishop) (c. 1674–1747), Archbishop of Canterbury John Potter (Conservative politician) (18
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 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 0xadc83734cb9d09cddb81007765f86aa57699ab178d61436371b2f5d6b7fcf084. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c1bdcad-d734-4b9b-8d2c-ed8def094101.json and https://artists.proofprofile.net/proofs/artist/9c1bdcad-d734-4b9b-8d2c-ed8def094101.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 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 0x53331e35507650cbb4d988708365b89c06e5bb6b94187bfa7e5c09a056396714. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/GBAJX8340001.
When the King Enjoys His Own Again (arr. Jeremy Barlow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba53bff9475c9a26999631f297a972ad62a2292a31b922afd25117caaf02a9d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBAJX8340003.
The Roast Beef of Old England (arr. Jeremy Barlow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65b578ad83c5ea6f78e82de0cb836691feceba141178399a7db03516f888bad. 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/GBAJX8340007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ab0b7033663d45644d95098ca7f9ad5b2a8b7fee3e469d679bfd2a330657bc. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBAJX8340008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f9b0554e1d22996e556076902fa4114357fe79a4fdb398db8827851b1eb9ef. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBAJX8340009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdaebd812b1dbfc1a4420f84c40f676d0a8916c966752bf9ece7bbd8a7e63dee. 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/GBAJX8340010.
The British Grenadiers (arr. Jeremy Barlow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6d7b37dacb529ebf94ba0954785526a862733f613de48e6af98c928036106a. 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/GBAJX8340013.
The Dowland Project - Care-charming sleep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9372127e93318cddd05a5d359b3ce485472e595e8d5c1c2845eba3475eb1a67b. 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/DEB330101801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2e24e237226a3aab44d09f3d94ee11a57e9dec676704d5178de19e36f77284. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/DEB330101802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2406f80a0e1e136b4cf14b458dfd4d6b351e0d8ab10f47cb0925afc450da5a. 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/DEB330101803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acf080f99efcb4d7d3a8373737bd36b8afd077d228b0cedc0177601ac0b1c9a. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/DEB330101804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ec438b2ad3325ce3dcca16e3ad6032c62fd37c369e70e2b64cfaa831966011. 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/DEB330101805.
Amores Pasados: Al Son De Los Arroyuelos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8240e7c96ab3935e8bc5d665084ad0bd6dc2dfb003108bc97ad0d899502b25f1. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DEB331444101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4dca976feef080ef740ff64135c917a4d5d4e0f37ec0827fd65b79c0b6c799. 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/DEB331444102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373ad48309e66a2958b58147cd0b747548afd43bcb3a89ea1e1a19a8054c738c. 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/DEB331444103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89bafed5e5164fa7f43d12c7d5cc90e221f0fbb7d817816a685321cd2bc9f0a. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/DEB331444105.