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 0xf50d7018feabe642468bb8e884367df722f5d7dfd63e37b8a3022cfe168d0fdb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/553eb314-b9fe-4768-a496-967cdc1c6f0e.json and https://artists.proofprofile.net/proofs/artist/553eb314-b9fe-4768-a496-967cdc1c6f0e.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 0xb041555b825390eb4f3be051f8008a5bf8c952a19d9711d9bd4ed72449595ce0. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USRHR8400209.
The Iowa Waltz (30th Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516aecd578c200b9a0da9d808e9f9a8adada4b945b64683613c67b5bb4484c64. 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/USRHR8300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8453944150832713d1ae262d1cd561b5a2778efe5f4fa6553eb5a9bd87349f33. 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/USRHR8300111.
The Iowa Waltz - 30th Anniversary Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae508741f5ef4554712a131b3a52bab13b91132a12671115c3cf6c031472271. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USRHR8500802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1e2923d742bc0188bfbc846d7aab1d462b734a1787bf56e3d4041702d04bf6. 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/USRHR8500809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64334cefa76ed6af50bd79a40c8236b803d0091a1536ce4b9d29c29de09446e. 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/USRHR8802305.
If I Had Known - Essential Recordings 1980-1996
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ba576e82de702b01df461e14207fb745cdc398a141108dea30279e77c2355a. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USRHR0317101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24419f54b9733adfaa1c9e5858e5bcf69021325b944ce5c37ccc59f75f7cdd23. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USRHR0317102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5763dfe4a729243068cd86a365b06a6ce24afcd46346a69dce5a4d39e31eb7ca. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USRHR0317105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f41159ae65bbba4913787dd1ba3466b0e1d444cbb69a674731b48a37343f51. 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/USRHR0317107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec37ff3cdbbda0fc6523873a768f5161f62df69cf9059018d07c0bf9a870fd74. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USRHR0317109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe095ba39601afd3328aeb4f217e49c7d5114d6d21af8e6248a4b435c902fc8e8. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:59:29Z), 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/USRHR0317113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9594a2d3fd82ea6105d5bbfcf6636698a27e8b6c085455fbbaa2e341e440557. 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/USRHR0317114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2257e6a805fcc8b4c644c78480297a7fb29a5ae644c93153b77e95d1bf6ab72. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:48:03Z), 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/USRHR0317115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76237273e3ffe4bc28b4abe1603f919b33d57f78cc632720864758b8a80799f. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/USRHR0317117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8060511df775a34a2074a08f26f45afab5d9686bb0e68e26fdb0648740f1a4cb. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/USRHR9204702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a41ee03744d0b3ccda0c5bc4455f63bcbffbc573b2e0df15f2b798ca609e67. 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/USRHR9204703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c5a1ff9ba0c07121f2307a1b70bb004bf3b0e7aea214ce115e7508d7062a19. 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/USRHR9204707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76b0334f3223ee7c154a1159115fb9496ef5ba6296a611b24b31c83271022a8. 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/USRHR9204708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6085d9c9c803c0365c0b9b90caddb0070e5429d5f3c83501cdcd37fe6fd109. 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/USRHR9204710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a3ae4ac29edf9402fb5b7e8aeda1443cc31f48168ad4a3f5fe3f6964b6d5e0. 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/USRHR9204711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfad84136e80ce5dc0871e053213b8cdc3782690842030eaac8e558bc85688a4. 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/USRHR9406801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72b99e072d77eac6745999bfd806fe6fa012b039c556db70cd5d090b103d4ca. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:38:07Z), 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/USRHR9406812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3d59ebe571f792fa4ceb3a6b990a8489fadce80583b9f62fd684a0d22d942b. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:24:31Z), 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/USRHR9608801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc7ea93d1d7a6423c27e2aed090f3a297388e136278978a4f0f20b20aa4d638. 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/USRHR9608802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a68fe601a8c97db7b96cdf7452704428d2c931481a2dcc17e6b7774e204e11c. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USRHR9608803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ed9d53a05b3808de1e9ca8d6f9b2ad2f0f24c459d2fc094020f76ce644fe4c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:33:44Z), 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/USRHR9608805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0639fa943ea3fffbd70697e967724aaa2929d5730e873e54fb8db861e1eea5. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USRHR9608807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37e23c7116496c36b0bcda8a6c0285b148168f1dc81ca80404451a59ef32539. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USRHR9608808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0db529b8bd12125b2b2ad97770ce7125c09bb9f96468dbc9fb5b928ad9e5f4b. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:44:04Z), 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/USRHR9608810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab676ca4e27f98b471119b89b55f8ca58df9ae212ec64908a61b8490dc2ae4f. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:48:25Z), 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/USRHR9608811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e12fea22d793180418d2150592658127f0e1a264df534711d1ed6adc8d0861. 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/USRHR9608812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc3d9a2087fbf1e93fa0c7bff4306cba819f9e1ab8a94fdceb30aa5004a7848. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USRHR9709803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013004942c9867e705ea834dc9defef2fd95912b90965e8dd2a07ad241c17e32. 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/USRHR9709804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0826c4427ea9a1ba5b9e58edcee42600c7ba91692359ba3cef4a517ace3f277e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USRHR9709805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25db991fdc4ac69382d7e8cfbe2d242ef734e4e9eb9ec27f536813ddd805bfe0. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:40:49Z), 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/USRHR0014802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74373f3b955f503876d64bba3e5f31c7376d61714dab2b5fce3a083c684bd65b. 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/USRHR0014804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e2addcb1c29a86a37bf64ab1f0de995ab9ec430c516e4c41f666b6823d8574. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:09:41Z), 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/USRHR0014805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08be070d23af02e44a34523dae7cf2d0ea8ef10a713ed85399ce5aead52df2f5. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USRHR0216801.
In The Hills Of California - Live From The Kate Wolf Music Festival 1997-2003
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4b4b86978fe5a7e127fae4d95fd0bebaefd168115770a34a8b0ef1eabf8c8c. 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/USRHR0619807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edde19f9e26bf302ed551e6fd84b90de81c0c0d50230f990499c01108ba28f9. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:07:20Z), 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/USY1R1124403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49e33b21a9abe194248d63db6888bf717ee892679e8892afe201e0600602f01. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USHM91209093.
A Nod To Bob - An Artist's Tribute To Bob Dylan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926dcdc13cc9c828a269635f1ac90c3aa95522469f0bda174ee91f3914fd7078. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/USRHR0115412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa656ddf96a44ac05f504ca22207d49bfcc307f05ba398ff7859a076c71f52567. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USRB41000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa961a43123511be6b17b1e7bae36947692f9578377d449058e23e6dd7079e691. 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/USRB41000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0dc14835e988471fde928037b8d65096f07979c541e2d6348be9481e584aaf1. 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/USRB41000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f7096293eb462b2843bb31338479fd58922bf7b2eae6333051ba18cbe7c249. 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/USRB41000018.
Can’t Steal My Fire: The Songs of David Olney
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc287003e9424d3078d51043bafe680b25e4ea0266a951734445a1ddb0702c0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US27Q2458911.
Where Have All The Flowers Gone: The Songs Of Pete Seeger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ba05a7d20a089e4dbd825de5dbb09197a97cc476271fb9ad0d8b82bb74f384. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USASR0502411.
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