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 0x73717f940ed9b1c69103998f646dd7f3d0377d05311d04fef47ebdae10891970. 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/59291aa1-c706-45f9-9e8d-579e92df3fc9.json and https://artists.proofprofile.net/proofs/artist/59291aa1-c706-45f9-9e8d-579e92df3fc9.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 0xc5b97736b14eba285372b0dc43c3332f862d14c570342f587e4f2a880900fd0a. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZDA52396315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc442944ad79a18a02edb4a1fefa986164663e27797c1ee79a6c5d958277cf15a. 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/QZTB22304573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd1b16588d190d3d9b9bf929a09ee10a09dd51fa3bae447caf528a4d45ea46f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZTBF2354963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9838dc1ca1dbe8a67ea8357567ba94600c5dd2fca2e7c94abcad886c8bb416. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZFYY2489584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afd3610c88ed44cf7cad0084768014ab0c3baa90b84c2bfb2cd206229882750. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZHN32418598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c0d35c6f77345d5d375a51e70cda967e260ddb28204b4b6ae47fa2dedd88c5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZMEN2445619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1188fb9592c10a3d906ba130787825fb1ef2542e5c5ed4a80785debde56694d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTAS2448873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c4839b1f54fea4736b9d0c892b7911cd3fb0ab9974c588d2cca2479b966eb7. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZZ772403627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c34cf9ce30ef8e339cec8e563a660d36acd63a688e1c82214c87eb9a496ab13. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZZ7V2498386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a92a163a74a7ad169ae71745b37228e28abb7a31d699c2a85883722c50aabe. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZZ7X2415230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69196b53a58bdf37057c1c05780d8ced2da64fc7001893f19fa5ca92ebe51307. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QZFYX2587344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d95f1e1df36e6d69f37887f2e91b0531c1afb1b915fee9aec6060c2d047a84. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZHN32583367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cd66d3a2d167f220f89be596613b569d7ef4aa350485206a86d8a0170a16c6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHN72552103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c515396c6195fbe1282025e295ceb925d1aaf36ece5cb4ad836e3ddc98cdf90. 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/QZK6P2528622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde35ece63377211d2a2c85360557150bb441c5fc8ec9c8f72fd51b8a656a88a3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZK6P2528624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca98831a4c594224d3f6949a06e766b6d7ee0ac2199537a6d5c141a3de63f52b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZK6H2560462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b900d4330e05d33605ee5fdd532b5e5c5623c23d155004147024dfccf82e650. 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/QZNWV2595053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db540880b1a4cbf32a229499d537200d5832786ff966a98dd15087b1f40d555. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNWY2547322.
I cant stand to hurt you #sadliketheweezer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd83421a783d8096e05e3f2ed4f366390d817092b9ea94d79f9185230fdb66b8. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZTB42543667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c8efbabec4e5d174f8151255d9b5978a4a92b696f8d0adbe83466d788908ec. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZTB82557332.
I dont wanna fall asleep #deadandbeautiful
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c95d4293e62b89cb947b291d0c69ef4f3df2da5efcac3f0fb82fd14e0e9e46b. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZTBD2539357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa402a44f98b6ff77330fb027fee50f06f54ff46b9fbe78eb9c33c27b2fb29ee2. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QZWFG2585145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f6d8f689f8ba5b1a711baafdc96e59613f115c6866461fdc5e00e9b8f99d1b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZWFR2534462.
throwing up on the sink #dolledupsuicide
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e83f14d7adfae6ea0af4223560533e38e3f3cbb798107c34bb4a55f124f27d. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZZ7X2576318.