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 0x8e6133aa06e929bd3e86c3e45475190ed7943f2afdbaf27ee705aac4de5a5e61. 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/b2b6487c-8e55-46f8-b490-1ab81f53d1e4.json and https://artists.proofprofile.net/proofs/artist/b2b6487c-8e55-46f8-b490-1ab81f53d1e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
wasted on you (feat. 93FEETOFSMOKE and KING CHRISTIAN)
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 0xd255dabf5abfb168ee0e410aa605cee2ae197161db5479dff70dbedd7ce04191. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM42K1723796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98736fa5b2c9668a49c452bf77d2cb23f42b354a3cddfc8435b5ac4f4822e9d7. 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/QM42K1774210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cfc6c518d5c582885e0551e4a079be9751e6e7e31422c36fdcc758d1fe7b82. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZBRF1880944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19c6464e4b59114a1d8b70d9e735cb57074b9fd1ccfa70cb43d545facc7ab09. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/QZBRF1880946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18715a909f0863a2e08d1d08c35013e2f95de4fe33838ff4851ad89e056b7de9. 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/QZBRF1880947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0073e33edb18151bbef35de32dda864bad445410d6f9f4e57a5e9a547f862a4. 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/QZDA51808443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a765e124ab06e11a5e121f3e3d4ed3b7b4114257e443991b4ab12a4c3b1eb4. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QM42K1862562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd58c70b10c3669dec3c6d96c41511601d2855b56602013cd34b5ab22a9cfa2a. 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/QZES51855438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4172de25a30a1d078e4466bc7d9b651499301d0e9a4f7698e26400593ae6452a. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QZB4J1828784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acac4871afc072e7ea813d2f51bef564e6d5d6455da0e2ed27bce981d52d882. 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/QZDA71973691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf5dc5fb6b482c08f43399fc00ba143393220c447a4e445ebc0f731ccf87678. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZDA61963781.
you were right about my heart (Acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a51b0c3d5b0725d4c203d315968bad054176d4cc447e8cce3feb53cf4e0d73c. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/QM42K2032300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11fc354c0c41c1d7688e44a2e7457a033043b86bf1a58057db550446f2e8a81. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QM42K2067146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219270ff551f62962c3b06523ccd3ddd6224a83ce85fff7b77c2cbbc58bba62f. 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/QM42K1961654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025b2e0bbd8211dc2ef0679ea7e8aeb28181e7cb2a60efdea7996fc3eec44adf. 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/QM42K1962891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab1d43aee268c318da91206f333dc1e427ef1e040b0129d86e8cdff842f4aa90. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZKDK2048275.
the wind whistles that song you used to sing
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32903e0a919b984aaf3f76f44b54c4c5d0590dca19c6a14779ab5c69da5a622c. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZMHL2041500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59aeb4228f90cf5e9de69cb0157ed491937792fd746a044860a8527f80383d5. 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/QZMHM2097430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f286b4d6b82df424d01209234e60d6ccf2a32407be75c531fb5a0e84cae3ce. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZS662124320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe53f085aee6da90383477faa51716604d3c326549b0153de6a5d1faeb62b478. 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/QZS652111701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae356d18ac7f90a05d7b3ca7cd3a9448a5417b454bea62ca797281d33f4b3b0. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QZS662129205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef00f56751abdd6366d04eadbf4b785c1d04d908eda0428cb10e3a858723c56d. 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/QZS642117949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e27e06ca8b17add51f87c061647a664320609ed77ea7ba32415fd5b2d2ce298. 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/QM42K2274603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00311c34675285fe5fcdc138e552d9b700f53713d4efcedf98726ed01a52040a. 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/QZW9L2274280.
harder than it looks softer than youd think
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d7d779057bce53b0139668c5cb6576d4f2a0d93b25b1163a6a2a9d087deaaf. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/QZ5AB2368749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9200ca8e22bfebed20ae6fdf861cc5f99c2d8d4ef367a4f24dd9fe5791347d93. 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/QZNJV2332996.
I'm Angry All the Time, Mostly at Myself
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543182f54327ef67e1d410cd1b199b2e961bc6b298cda685b510df15218970fa. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZF8N1814232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa027a7fa6a576d06bef3c6dc49da00890159547e88393aa99215cdf93b4821. 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/QZN882177189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd741ec75cdbd192a88fad1d8755075047d3c3fc4a9fa4819dfabf4b1e409fd36. 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/QM4TW2120895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae71cc426efcdff1647dcc4ad17332ba176786519865ac12d5b2052f185307d. 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/TCJPO2144922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37388eef2c5ccecd82e04d10c449aac61a472f8e0e243fa0d7a3cf6326ecce93. 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/QZAPG1853789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bee0133439ff6807bbe6cc55c769870f2629765f72c9cd12ad9c3c328ab97f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZARB1862642.