VAMP-Associated Protein A ( or Vesicle-Associated Membrane Protein-Associated Protein A) is a protein that in humans is encoded by the VAPA gene. Together with VAPB and VAPC it forms the VAP protein f
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 0x8015c023a505e76b6f7f5ff912006f926580e96fdfe6f5403b7e8de1c7502b6c. 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/298f976e-dd9d-42a1-b4ad-20a5afffc3a2.json and https://artists.proofprofile.net/proofs/artist/298f976e-dd9d-42a1-b4ad-20a5afffc3a2.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 0x8b074e5a4409a93e78019df1a5d1cc1065445c03afba3e7a3959dfa26be9a579. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRDKW2316538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e68278e6c7029af35fcf40b056854d7ddb0831eeb8054b823e0412f7571be9. 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/FRDKW2400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0552f61acafc2d787ddea214431c3d73497fc1d2a85aa6fcccf0144a1146ce99. 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/FRDKW2400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fe974bfae025181b1cabd69a7078901482dca7774ff76ba324f779355dcd8b. 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/FRDKW2400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d423525cd0283bf2ea675614264d32bba0537c96b9bab383a0a7eebae81dac2. 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/FRDKW2319860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1f73930179a0382dc51d6d79dd0866884b1b97de13a1e00ff49b461cfc9daf. 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/FRDKW2316540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1796024aebe4ab92f6f58160686abb5395b85711da667ea73f8b12938010c73. 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/FRDKW2316671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28dc4081a02e119ce953e8c5aabca4aa174e5a38e4f4fc120ffca84f1e2298fe. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRDKW2315372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28dea742d02cec79e10c87bb88341c49b5b0eac77673f43a4cb8592431d813cb. 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/FRDKW2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ea491ff76f808ebf22095a774a28e8953781e56af992f1728f9419050e3ccb. 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/FRDKW2300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4b686167b75dfe58658d7f18cef2bd3c0561c6dd55c4760a08ecc710e97d83. 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/FRDKW2300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88abd5ab28ab1697efed70401fbd53664c3bfebc87d0be795b1488d95d4f6cb. 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/FRDKW2206004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4415d570cc4fdb56ac23c800c903a72b91a64a2786193344d08b396a89a18b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRDKW2206315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed58285b4979c39663e2e1797e116a38301bea35cd5064051b9da375cfb5698. 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/FRDKW2206316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a8a156e5d59e4309e15a1e8a89acee7190aac4d03cbcc7a130daa27facabac. 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/FRDKW2206318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88abd5ab28ab1697efed70401fbd53664c3bfebc87d0be795b1488d95d4f6cb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRDKW2206004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b99e4fc95f6d7952fd0955ab894a3761aaaab49bcb79e8205a4b760acdd74b. 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/FRDKW2203374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056d46fa4ad423d98a8690a8295ad7ba0632add150798ed0c3bf2ed5a27cfb64. 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/FRDKW2203375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc9fe185fbf7dcb74ffbea69fe87c69acf578921ca64e5d78e67274e09fefd7. 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/FRDKW2108038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c8a0a566d52f64f1161ebc8c5f7ccc114960005221c7a04d5095a96425fdde. 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/FRDKW2108037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16befbe3eb3ca594981da3668f597d89c5005b7a1b7d5b6ca71e1b59ccde7bb. 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/FRDKW2108040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bd09c275e376025086ccb69c6b1f26df8d613641929a0b36b3ccd4e8d478fc. 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/FRDKW2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4967ce0cf7f92d29fa7219ab2687f2ce8b75f9b2284548cddcd760c7462741. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRDKW2100050.