AF1 or AF-1 may refer to: Air Force One, the air traffic callsign for the plane (if operated by the Air Force) that the President of the United States is aboard Arena Football One, a new Arena foot
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 0x4c0a545fb363be2132ab7394005c80c9652c7ff8dd57e6a39b182ab518f60d8c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dfaa5622-1323-4908-a17b-17c8c40fa134.json and https://artists.proofprofile.net/proofs/artist/dfaa5622-1323-4908-a17b-17c8c40fa134.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 0x684e93e32b288ae9fa280a4dff666fac14b176c1b28443b656878b580bfd2b69. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/NOX9X3538902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731f71d3ed1e5487ee1d8e3636a328e9a4007b316256d2e3e237dd1cfed53bc7. 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/NOX9X3544501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb1094e34a937b6b182aa1abfc467185cf4c1a90dfb5e6a5b51a960d345b7f9. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/NOX9X3544502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2725bde8ca3b7078c39aaf95e4ed813a01ebc48622d9f7f1a14a317e3e9ec2. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NOX9X3544507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349e179e8e95eada21da416bf66384af5c7943a5b25b9af6dab985656ff30376. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/NOX9X3544512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7805f09ca091df3409e71ec63cc4203d20d6f9ac7fc8d7e539fc7e9ead99918. 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/NOX9X3544503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ffbd3e803262dee81270174f6ca6f18ce3091a062c8afa0aea2304813aa751. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/NOX9X3544504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e69a3980ee24232eb9f83de1eb9256481cbb6641fa2e20fb7e50860adcf3061. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/NOX9X3544505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9b04f6351e02223631192eed7e9fa434fc3dd56797792a164ece69f764c44d. 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/NOX9X3544508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2671f3533f459afb9974c9766576a2647a838b2a51375d74f635c43dd9a9b63. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:46:53Z), 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/NOX9X3544513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d7887fc75ae92de726032b9f5d47c50aea4547e18cfe24d877e7c29b8ef16d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NOX9X4018501.
Af1 - Hiphop Vs Rock, Musikken Fra Sesong 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ecf44672110b9d5bd23d7a52b16c9c84fa505cb425ab18730e33347509aac3e. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/NOX9X4043103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cb56a5b743a9aa0a6dcc35e5ddf0654d87a288a395e9ff61aacc2b9f7f4573. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NOX9X4043106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5d924fa14f8c0718fae08faececa769ea92009645a81f9ddedc16d2d861cff. 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/NOX9X4043108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf208982ed79f5d80419e713290f09baa92cb1710e6931e7691b8cfea38b794c8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NOX9X4043113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe3ab604854133286f4b6c7bee8eecec02064bea51c0ddb423cef6fedf05fdb. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/NOX9X4043114.
Af1 - Hiphop vs Rock, Musikken Fra Sesong 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc1b609b6981625d5e93b603057e3daaf63cca76126eb8307253856a525ee5d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:48:46Z), 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/NOX9X4043112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ae687b6e5824d3dc08916a8bf36cacb6d2bf5dfc87b5074adc98256d3611cd. 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/ESA122453920.