Lofty may refer to: Places Mount Lofty (disambiguation), several places and associated subjects in Australia People Lofty Blomfield, (1908–1971), New Zealand professional wrestler Lofty Drews (bo
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 0x20705c6123af5082e71dc33157314aba183c4735a30a044b0081ce3ae131f37d. 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/9af7f9e3-bcb4-4e85-80f6-5e1d6ff33bfe.json and https://artists.proofprofile.net/proofs/artist/9af7f9e3-bcb4-4e85-80f6-5e1d6ff33bfe.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 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 0x97636a361d7ee4195fcf869e3c882f4aa9a72f532f0427efc312b625b7e38a5e. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZCE61892841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463019a28a086b93ab15b2f6d6f8d11105c9283db9c1595d997cbe44a21a91a2. 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/QM42K2098747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0ec27877c013f3fa614297583c7591942cb20267d582c9cc7a4593ecf47ee1. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QM3DF2122325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f36835222d7826f7fa90951bf4e9c1409a75da2ae92e39f8c7abbb6094435d2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZS662107503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539d808380ecea86587781ee9b78bf2545558a2af096717399b3465aad2d074a. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QZKDK2295230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34f54bc1da123fb3e3e59f1f0a74d7c615013d96b75a62ab28c67f5a46dd092. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US3DF2240089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4acf391ac767657b6356accdd7f59ab756c2baa00c11d5f1163a7d2f5d41dc17. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US3DF2237837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70ededc87fdda83b00ea3fde8055ecc805888797c3b02d62f4623e219cf3f2f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/US3DF2237838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d99dd33a005e4432ddc1c0a1f6c48f619b8274fe9ffa6f9d10a1a09f07c10a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/US3DF2237841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d312193a19b310fb606e16943bead5dcbdc6b6b68c96f8a4bd1f91b9ef51e69. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/US3DF2237842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4ac5831f665b92b64cd7380a0ace39ebe1424e8cbe558c98d845455754aed9. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/US3DF2237843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2d7ab4ce973e184aca28d35004b0d018b15d3e0612d61ed12711da637377c2. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USANG2208448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da5cbcb510b47fd446b3d4f847322930e57c95697adaf0f04be12e32502e472. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRIDO2310482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe882b0722dd6aeb198c97bfaff0d98d6d2a7a92352a342abee82ecf62465653b. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/USANG2494846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccd3b6ca48c49c43424fe3fc905c1e67eb006d0428bed7439774e416fff2d2a. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/FRIDO2510392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0283e0738ff75f792747e22453087cc892c8cba05bbe5fdc66c51559d8194b38. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/FRIDO2511789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8923e97cfb064542a443f7592f5369dfcf5b657cb4d05173d979d9c6619ce19b. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/FRIDO2511791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1bed0313a6638a35dd23db0f0eafc6238b4320939aa80f9f08e5df32e46027. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/FRIDO2511047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1803492438e38d85073902079f5ffe3371bf9c9589bd51a141e48cc19710986. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2237571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a46bf88f403f2e11df130c2479bcc436ba957f3bc945753d30b214301b2bec. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QZN882247549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9adee84f7353b03241879b97032a0f458803c74d04c5ddb9ad6c0864420545. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2286549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43eff74c75f45ffff01d35144751b778dc21e5eaffc73cf2993f665cd1e933d5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAEZ2059200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa771c8a92d81437e973b8ff74aa670df33afea5b009f550d66bbdc30ed68da07. 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/QZAKB1910659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a65491ace69eee2a80ca26f1bf56789269794a4ad51a238d9f2a062e44f66f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBKQU2101977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cf65c11299fdf57d04cd62f1b6fe1f36d78beb7a32810de7f93eaecb532792. 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/QM42K1802115.