Toast most commonly refers to: Toast (food), bread browned with dry heat Toast (honor), a ritual in which a drink is taken Toast or Toasted may also refer to: Places Toast, North Carolina, a cens
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 0x2593bb11a7642c98e8d86d4c58158b6aa59747f026029f40309656f9cf71fd21. 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/b54b1085-f637-4e15-895f-caa341b88290.json and https://artists.proofprofile.net/proofs/artist/b54b1085-f637-4e15-895f-caa341b88290.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 0xf3561917ae1f4bb4c5a232b64ceac2529e6f4769738484888fa4ccb18d0f5975. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZMEP2320526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f50b42c5a5ff921a19dddb2ee41cfd95aeab0f6dcc027f5b2004cfb8568375. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZFZ72202775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06f88efeb1a705214f3642187b7f8154f78ba1bacb7f55fe21872eac2d6b6c5. 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/QZK6L2204289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecb8cedc3a45331a428d7bad1793a4f66bc38c796ae9a0f00ab8e63001ca674. 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/QZNWR2290420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1e5355cec5540198c858937ab196bc6dcb4c4a53da747fc0023305a47be74b. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZTAU2387241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d996963b13c100ee03e401158d2ec5104b047de497c101ad988aa4c24a91a11. 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/QZWFP2352658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d79f58261c36b80278f205341f73ec65783df8736f60282e604be0fbc288c8. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZES92478955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9f28ec0170f0cd2ec09893f6f339868f4aeb866ec9137052e6044fe9a01957. 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/QZTAS2496632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0b1b289ce5d1805df3483e2a52beef5d3d553702be6904b9b3f87893ccce78. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTB72598225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd02863cbf80f6fe900da1577085a395c2511a016b630194a34eef58e24bf0c. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZTB72598226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674787f7f51716762f68017f8aa291ee9e77f6aadca6198d0f6319f67ed7a10f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTB72598227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686938e781a6b415bb0a52b0280c57d589c349b765105fd92b05c6d2870e154a. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZTB72598228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3860aaa0157a041cbab62a5c7cada861118bb1113465428ec31fde3e100a96. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZTB72598229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea33bed0ec5c5b717bb0e096e675c11bb0115dc3658ead65c3814dfb026c56a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTB72598230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bff5c365be991d2460ca7e692444832e62bfc2feda451eec461bf54ab5d19af. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZTB72598231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1a8de5d596f4bfc941c9712b2adfcfe1f85406b220448a2acd23c1ce244bcb. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZTB62595868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f52aeb03c792a6fcdf9451460032db1afff8a9d348425253a0d2bb17acd0ff. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZTB72598232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1260d1f137d54ec9d0188316733af9e0b834ddb31fa57558a3898005b961cbc. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZTB72598233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6d3d8eefa894ffedcc8cf758755ad072a0a689e11f6c7d9994cbd3d2355c68. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTB72598234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f5bf223066b13ef1bc891ded73ec82da2ab629a0e7e109bc6369b0f21db3cd. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTB72598235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60c2bbf6108d937300adf3264380c0d4e4ba254c580e4c2c0e1aa2cec4d3616. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTB72598236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529ef7fd5d089e1b7d949c83864a5b97cfa0d5c9eefbf1d0505bd8e210aee807. 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/QZTB72598237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56169b29222ccfe66e4bbd63c6b0e79949cae134b45d7603d4b8bcea94ae05a9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTB72598238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999a66bc2a485e30f208fe4bd370d094389baf68f1d6b8d89094c7ff026f6f97. 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/QZTB72598239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0442ca4aa7318512a77a243ed0204eba4e343063ebfad69ab6339d3d812a63. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZTB72598240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759ee73a6881a9a974c30c4fc1537d01b1bc0f144353e51765e71e18003fb286. 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/QZHZ52183579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9280d6da041f07b3ae6a03278617ca63a3dc02ad5e2116a61958dbac5311a2f. 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/QT2VB2420984.