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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cf9f3cec6ffc224332f189197526561699516b218a91d5cf6af2a84f381e8c. 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/46359f7e-0398-4793-a65c-09787a85b395.json and https://artists.proofprofile.net/proofs/artist/46359f7e-0398-4793-a65c-09787a85b395.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799181fcf787fdf670353101b097984a9eb0e6f1d94be7e0246d3a6b181ad524. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/HUA5W1500009.
Ne Legyé Má' Genyó (Add Köcsön A Bicsajod)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd80314cea5e4317166338b82515a1fce53bdb6f108929f5728b98d8ac302242. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/HUA5W1500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd619dee83382599ef29c3cb6269487a9b2176338b3f48401849fc9a83810f066. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:06:18Z), 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/HUA5W1500044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0dc12e505c08cd8b61616c4b17bce34d5a0244dd68d8c9e1dd5212764ae97e. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:04:27Z), 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/HUA5W1500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22834636ff778a254a4c9a9e0a9d25d0d663f853a6d21f6feb21323730de4b70. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/HUA5W1500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e675db87708082e21abdf8994a1af6fec408bc5401b6273cd833b0ca551527. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/HUA5W1500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10a561b6b1f3447de09441c918c0e17c1bc5c0f5cfea3278d741ba20ed63526. 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/HUA5W1500057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778491f0ceae469861f86f1ecc02f26e5df7df4b7277325ed195f034cc72364a. 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/HUA5W1500058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb858dc2af8aa0703c8cb0b18b7cb72dae7b662ecc0f53a07e2a656d547919f7. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/HUA5W1500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9415fb0ebb367b3a72e578bb967af77c215fea08ef5cba36a75ebf58b6d135b. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/HUA5W1500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26829d93df394efbc973fc07add4c99653abc281558125e0649b9fa54177536. 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/HUA5W1500069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3ff99141a6c3ee197b932c8c0fdcabca3a745c55211023d6f3aea77a0979fc. 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/HUA5W1500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815f2af82ee2465b136c1f49ad069bf5c7a2060e445f77969c3fc939cb3d32dd. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/HUA5W1500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015d033239178b86f4be3106113e726a926f56d313d080c6a5eb930f3361ef03. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/HUA5W1500081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc013e9b625952f6fb1c274ff8739e21a09e8b5a15785848ddd6a501f2256395d. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/HUA5W1500083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2552c12d1e4bb091d3c5ba89f63b1c9ac8008d07f09cf9e8caa73eb62724b3c1. 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/HUA5W1500084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7cd05cae98c3804fcdd45d7d07516daef1c90fa17c0ef3a07f0feed78bed3d. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/HUA5W1500087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacf89429a5751dc49f38230bf33b1b1892dea472facfbb86bfe677618653be3. 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/HUA5W1500090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37dcc27289d99477c24d9266fa82104f1bd79e1a105d58633452521a229ea82. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/HUA5W1500095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abc1a52684cc2149eb9dd9d23b7f6a9188c713f5265c2c1b6a6c11ecbb83588. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/HUA5W1500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c9867dc42a2920fd099741de56e046f3c1472d5f8954cc99f205fb72c9fc68. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/HUA5W1500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0a472d5eeae5defc696fa2815de7958679b3073fcbc495969841608d8ceadf. 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/HUA5W1500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940781240073929fa61aaa6b35238449c7ce371157c94c93ec99c92bdcf7cec9. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/HUA5W1500112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e50bb1dbd3f60858c9898579019c2febb3febb9a4ca32cb8f2b7ec564e4e69e. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/HUA5W1500119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac730b8d7e5f5fffd5b59511c650e4ddd44db28c262920ab458e35ca034391d6. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/HUA5W1500133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a2f489a2fefe2519935b6ed2df5dde6dfe873cff70f04ca330e9ff5d548657. 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/HUA5W1500134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc06600b80b9227beba5b06b049ddee89244af0cd18a1bb800ea246bb002827e. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/FR2X41539723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3972247d171559beaa858971896ead319463c8e96ab0d77367b5b916b1d00515. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DGA062023305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4bc2941dee7b1557aaf117d5393476106f968984e357b86eb51c938c427709. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/DGA062023289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b80fda759cd71c2f141240d6b331a6c0ddc0622f12e6e141a0b29df2c197525. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DGA062023290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb30cae7959e54f71b2e56d94f6706a6f3579f30264414439c6b5183789f95db. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:08:39Z), 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/DGA062023307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5dd97cbea55eb92891df514a17d42aad1a6c3051f3c4467f0f74eb0ed5c85e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DGA062023291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e9f6010cf400634fd20e3b4f51c9ead3573021f0fd65e009d8d8adb9a38415. 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/DGA062023294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958803f519b4e6f63af285c9c8ec067c15658af931abace60698c2c898e587c6. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:45:19Z), 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/DGA062023312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd03c13260ad640500d90088c662b8defafc03145f8a524643054bd24a74b10. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:31:40Z), 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/DGA062023297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22cea60461292f8044e1b2390ae9c1fa436e63b11cdb1bf8d7e52f79bf3b6ff. 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/DGA062023298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb08ebc17bfa7e2ea4c1d8a5f8821d59bb663193d1b9b34f44c725e567363af. 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/DGA062023301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd406c9d493cd8917c4fa2dad3694e98f3fad27b2e6bdb224851390719b4f1ecc. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/DGA062023302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe402388d99e9a5236f41896265f41d901635e60a549c52074572f802d67096. 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/DGA062023318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ea69968e00946713417c9ef15eb588c54d64809575e0ec69459f48ecb15a4d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/HUA5W2200005.