TWINKLE (The Weizmann Institute Key Locating Engine) is a hypothetical integer factorization device described in 1999 by Adi Shamir and purported to be capable of factoring 512-bit integers. It is als
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xc60382dfbfc6f6c39072b5d105003926e4920ad3cc783793128a9290f38d74ae. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f1618a2c-cb9f-4af2-85c7-62172772c169.json and https://artists.proofprofile.net/proofs/artist/f1618a2c-cb9f-4af2-85c7-62172772c169.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 → block OTSBitcoinBlock must exist at that height 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 0xa1ae50da5a70b559cc4bd3f6c953d479372931e90575febb89c17ec5fcffa5c5. 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/TCJPV2306229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82620473370e43ba23aa5339fbd552d415c86e2ee7d7ea91bca831f2c44b84ca. 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/TCJPV2306256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b7035f1c04e405b5442104af0181214331f5ed016932c959b027e55a2db443. 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/TCJPV2306261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b8132ed544624c19a2f7587f925d5747e70e5314905847085ae2c1c4369ff1. 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/TCJPV2306263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbbc89d9e8afec5452590557ddac107ffe4f3a575bbb8553eea34154006c2ae. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCJPV2306267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6daed9bcdbc7fb756a8708fb0812d3dabac48233d62b4768884fe08129cc80. 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/TCJPV2306270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e7cc7c293ff64c089122ec72a0f7266f09fd4b1b46818f6044407b4c140319. 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/TCJPI1836708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7803bfe220f2a5fe69e0dcd51063b566e33d61c72c7fef71c3a6e71a5a3e37. 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/TCJPI1836713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be05a92e03d2e6880b14cafe1fe4c981bdde9de7f1e580a664a4e670d749a57. 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/TCJPI1836729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11aef727dcf9df3483cc33185b56e1675767bfbfc1dcc2ef6c9f01ba8e42541. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCJPI1836736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b3c93f00a510b7e07608a5052b301cd1c02c111a573265bc328130c9eb284c. 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/TCJPI1836738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d4cdcdc82f2830d56652e816faebad242b9e00d33418129557e660bfa46ef6. 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/TCJPI1836739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ca1b3dfc700eca54f5b88c118043f5e9041d90f341f30526c9d9323b4df89a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/TCJPG1726906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca3753abea76ad251d620c903d28eff9ae38d1de828aa642a182e0c2b001054. 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/TCJPG1726910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb742d62f4575fdebc9c6fde654adcc539c1c6f74041dd5fa512e28098769846. 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/TCJPG1726911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba97d0f8f230c04638ee4a6fa90f170c9fa92c8f45a226601a5e7717a0abd97e. 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/TCJPG1726926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83039e004e7d8bafc845b5ef98e1ec4ce7e8db4ab88a8695d7eb25bdf32e328c. 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/TCJPG1726930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8124dc8b01ec8b98504621075f819d3df552a3468b7eeefc3fe2eb2f830c33cb. 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/TCJPG1726938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d73c867cc9f4346a03556f156f47ec221cc6f5d78bab7a538e3d15edd2d882. 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/TCJPG1726954.