Vamp most commonly refers to: Vamp (shoe), the upper part of a shoe Vamp (woman), a seductress or femme fatale; derived from "vampire" Vamp (music), a repeating musical figure or accompaniment Vam
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 0xa1e57dcdba7706a8bf7dff7d240e35c96985a0d41c9a51c1d0f39b88a6572582. 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/e081790a-aaa2-4e13-a5e4-2265d8c4ca0f.json and https://artists.proofprofile.net/proofs/artist/e081790a-aaa2-4e13-a5e4-2265d8c4ca0f.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 0xc7766a065a1a1412731b458f19f340d77b36180a659072c1281fa40cddf13759. 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/QZTRX2496587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7521f976fa7d8dc02d40a7f6f1ec54f4f3b6fbad0c334073af5515b8c9b5136b. 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/GX53U2010339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b86f2a4859bdd40a126810ad274301b058ccc382ba59995faa953693e5631a7. 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/QZWDD2445647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bcbb442d220ddda506444e22085d5d1333aceae6a8dab437e272e69887fd68. 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/QZTV32416896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5523c1925e186b6d0ee8a9ddb5a5aac1917ca184103da8e7c25449302dfd408b. 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/GBWUL2421988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3145ae4a1c76fe69f2cb8b83b14ea640de03ac1a0cbf032c4e1488c2d4c17da7. 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/QZ5FN2462008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e825d79caacef098729880f1f4f1ba8220f795b5188ab2b0aa5eef8798098d. 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/QZZ8B2369353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c22d85db0e1ac0112635b85d7781034b6d85bfa60781eea6fa57fec06988d9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZWV32359584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31af4edd438a44441b7394a3df67fc9a5945d5c1e8e215b18cf33895092dde81. 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/QZWDE2373779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b52e81dbd685958080fab26cdc42ea69d9f1df38ff49bc799d7ca93fd240a1d. 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/QZWDD2304106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6709387d7991852e5a12b7ae2d97af004d80ee0edff56495690e1df8751b26d7. 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/QZWV32455975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7766a065a1a1412731b458f19f340d77b36180a659072c1281fa40cddf13759. 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/QZTRX2496587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b1af96c5837a731b23be4eb5ec57fe7030e3f60edc3de70481f976350c5b46. 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/QZTV32327899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd4504f119afce2ea3a5056e07ad2dad1a215377e71451aaf167d1f393a92ee. 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/QZWDE2432747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81960aa34c0110e3970772a6d32d0911b9f8813f7b256f254a757003ee985bd4. 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/QZWDE2432833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c01d16f98e623db2a816fb26539a3f3270c444d68769c7bb3e1b99246ed67d5. 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/QZWDE2432895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe637dde8a9d2f9c8e5f57f10519748e5d8036640da5bd2b5dd1cbab1df1cff7c. 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/GBWUL2312664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8975a2c96ba3398b7f12f182fde29c6d2ecadb1890915d7d4f5633c7d01511. 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/GBWUL2312834.