thumb|In a 1965 essay, Reyner Banham describes the cordless electric razor as an example of "a gizmo, a gadget, a gimmick". A gadget is a mechanical device or any ingenious article. Gadgets are somet
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 0xb9ec3755e382e4f05cbb0c8a545b07faed6459737d76edec498668ef3292e564. 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/2fb28179-6942-4b74-8938-0a13ed4af1ee.json and https://artists.proofprofile.net/proofs/artist/2fb28179-6942-4b74-8938-0a13ed4af1ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Jazz Jousters Sessions: Season Three
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 0x0af64fe5d717d2fb6c5e01d2e9e7d4acdff26bad538f664310e7e27075a770ad. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USHM21551568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcfdd90014bb722488d726640db36a0cb46cea52a9d1a903b56b2d5e91f681d. 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/USHM81787035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40eab7e824b10e50f51c5a071c83ee8c9e41caf948cdcd569b149374a371d853. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USHM81787038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcfc957175f5de2b3cd7b797b262c335b9234be4d24699043b00a01fb570317. 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/USHM81787040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd822898806e6b83ddae6187e02c1459192058440b1cd699b7571c7924a4bf0. 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/USCGH1748706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7398447c560b4a3fcaf2ac96896b480c25213eeb49a3daba4dcfe796aa3fe76. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USCGH1748707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae228f354ed2a24c49c70b8393721f0ca432fd0288b889a63860b9048c0171b. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USCGH1748709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e63bef6b4e9c98f475518057c0d0b0495ff60b9767ae90443f12a64cd157a1c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USCGH1748712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3724ba31fe3603629bed6a6262d80317d0ad5ece8f76c99390f275e2c1e47ae8. 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/USCGH1748714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ba3d3d4c45007c88faf03ea1500e14a96acb3f906d66b1134938742c767858. 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/USCGH1748716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659fe1ec110b82e217484ebd594ec8876b9c45bffee7f0372c7143cb2493d060. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEQ121641046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179b7548f794365a4876d3bd46a540fbd7fb5b2b51c3b14e29019e14722899ee. 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/DEQ121641047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e691470ae264b891f12bf933ab942e5d5487e3793e49ac91e646b2afa7c3f18. 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/DEQ121641048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566963f449bc22deea5190c7ec7d9b79f40c7afa1045b777f6b31e47283c61e0. 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/DEQ121641049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a6dd23732587fe7dfe19317e27ac2d5e21e6520b46762f0c9770dd7ff6bcdb. 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/DEQ121641050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fd957abc57861308c65a05020d551519c63672c359c0d90ec8a954141d16e8. 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/DEQ121641051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e7ad6f523041bec95ce3f941de74e5e68275ae60175dc52b033f951883892c. 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/DEQ121641052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8302f3f5cd366606d693a7416499bdc204fdc211d4f3f454296200c1b191cc4. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEQ121641053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a6842d3c99581c80166ee8b1f5e0c74dab2a68b0e92ca95666ae0a89155290. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DEQ121641054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ef6192b73e4067fa2119a27a8654302a3068cf8f6290662bd807b31b2c2480. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USHM91419370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d322519d9d207465b45da51f6f8407f91e7327d7dd23e947e23c6a102cb18fb. 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/QMANG2216026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86767636c9d9c08e21b97eee147c7f2b11b36fa0580ffb1ae2d5b52c30984b8. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEQ022384275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b404b54d86a846f174a585e39afd0fdd4ecc2218cf3ac2ad16dfd8b6db4020. 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/DGA092372403.
Tales From The Riverbank Pt III (Gadget Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340280459f6e9fdf889192b4a410be886f3dccc212746ec9474588d2a7719a0a. 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/GB8KE2310106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc759f0f162e84fcb5b1baf91b42a406ba053bfa680c4d23258963a17f460ed4a. 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/FRX282350943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffe5420b16ec105f88bff5b67828c900b1a25d0c67c7e20fe38887322d473f4. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/FR10S2399305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a22d047ec36a462ed7af74b9f0f766d6cc38ec8e375716233c08a7b391954f1. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/US3DF2246151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ad0391ae61b35551e3a0bfc16f4c3b1c75062f931fcdceb36a6feb3bbd9185. 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/QM3DF2173690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c70fb8de9a157225a376f6c7226e03678a99cc96eba3dfed45a0c127430fb3b. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QM3DF2186554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7421d757ae9a5a95ad9479f15c9055f00422d7bb3e4537c0f6561846797fa03d. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QM3DF2185220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4c94350fd0689d2eda0d8200a763ddf6ab33636893072f6744956741a3f80e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM3DF2176094.