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 0xbf3fb62239c1110fbc94fb277580eeb92b60aac53ce93f21b5bba7fe282ef507. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55a9e0a4-ae6e-4fee-93d1-76422ff7b0dc.json and https://artists.proofprofile.net/proofs/artist/55a9e0a4-ae6e-4fee-93d1-76422ff7b0dc.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 0xf32da0c00f5a03194ec85070fc9da252d9302aff5cb9a08d7bb1d41094321435. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:10:17Z), 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/USWR61507125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b486bd84fd53a0be3e6e4151e23980eb1eda927f9ac5ce66970b7fd980f831. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/USWR61507126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5eb6f8de90b1bdfdea2a4103eb6c7659afaf395c2443097becea25564c31a56. 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/USWR61507127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff59c880194c6d560f6e00eecc5b7e68a35fdb7668077e5392f693e3b9f0e1d. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:07:10Z), 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/USWR61507128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b44991db237eca1dae25565a09917bd88f09f3970d0eecb5968fadfb910d6f6. 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/USWR61507129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ba4c9976d9f2d4d44f466e3fcec735ac7c3c2d1cbb48f956673d2f7ddb65c8. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USWR61507130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce773022421ba5f444319ada4af0356c47b3032eb7de6332f1979711147e787. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:08:10Z), 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/USWR61507131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ffb78610aa4e1caa2d60e626cef95a286d9e7a3257795892788bb458bfe52a. 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/USWR61507132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16db18fa71ba429bbbabce80fe216ca720fcfb402fb8f7f5063268bf55904433. 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/USWR61507134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe775ff039bc613ccda57fc951846db809585eef6d002a720b694ac71f3c2ee02. 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/USWR61507135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d506ad56e13f8d871bc925c28f5e1d85ae58fc0592431b5048082d8303b0687. 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/USWR61507136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdceb4800da3d570c592996d13d5a852caf230bec69a7f5532609823515d38a65. 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/USWR61507138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5956bb663a606d20ad050ecbac0b503f696979fba23d6e4459cb36d9ccfd120. 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/USWR61507140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8361a37b30ff621d88078465306c254b5f2f3fd882d83e84f45c571dd94d18. 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/USWR61507143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c04680c7d1754f9c56bafe92c3dc15dd57bde72f56b0f1a786a3d6c2a03bc75. 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/USWR61507144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d94b4bbf850b3d75adc045a8236995f053d0c3c2ef6ad4dbe8cc04f9e0c887e. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/USWR61507021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb07cb239d3d617c3df7df2a04456a0ef4d6527c4d436718a4d84226c92cba2. 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/USWR61507106.
Something Special About Each of the Animals
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062a73c48b6ca63d2c30419e607b099543dd83bfe27365a5fb28720b730e991f. 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/USWR61507107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861befb06e733ee2162f524c25d7472a525d8386db730fdcbdfb265fd6d5b280. 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/USWR61507108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089f7899083f42f28d45c134218f450720d1bd7afc40a6b58e34254cfccee010. 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/USWR61507110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76642bf77d844f51d5237bdd19bb75bf4e240ebc911a19f61d5c49e61ba38b6f. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USWR61507112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019013e66bdadab23ba0ab84cfdc02d1e2abe193e00366de68385a90ec8b365b. 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/USWR61507113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfc3905cfa5f9fb02ef62eb3ebc649c36ff43eed1bd8102325f8411a133603a. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USWR61507114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2823439be7da7b16ce339212538aabc41be775697c8a619523c2943ab97c0b6. 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/USWR61507116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18cb0fb6fc948b0a23f4374a7172ebc8d1305a284a43752b237e5674e082793d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USWR61507117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14a9d4932ab82ec94f15759cbfc2ab9d2d3f16fd34a0a02a9d09defde188c48. 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/USWR61507118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc859fcea2d4e953144b11160c5aaed7e859b29e8cb2ba6168e001fa4baf166. 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/USWR61507119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816b081cf3d3ebd7eecf01863242f940291415aa0cd5441d86f520595be261eb. 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/USWR61507120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391e7a6e5ad649d5b7e764c42d065ebc1467e2cb46356f08123982010670abef. 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/USWR61507122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb98b864230ff60d32fdd8e7da5ddad2f6b5df9241075a8c1486c9686f6729fa. 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/USWR61507124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e78d174685329ac3191d4c18deb3fc36b1af5e8c6c77e52f0874e942d93830c. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/USWR61507146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ccfaf56b3469a1bca61246852f57cde5240c29036825ea8730e105e39369a0c. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:33:02Z), 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/USWR61507148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b04ab979f0b674128747a7a10ad5264137699497148c0f00812789676347cd. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:47:11Z), 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/USWR61507149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0a80dc7b462a9e4d12f2e03f473ae8b98ef11e72e897a05a69cff489d689f5. 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/USWR61507150.
Maybe Dandelion Pouncing Wasn't for Everyone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe964deec02bce54689e1ad6293f3222a3c63bde7281fc68c1f2b819476e31d. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/USWR61507151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e84912f5d41621cfc21ae56e91bfd72c020ab1d08b3b450a0d4dade3426bd6a. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/USWR61507152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe205f82e203a350868e8de5d33096482f8f91360ea9413ecf8becf48d911d2. 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/USWR61507153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea0baef63abb71f90e1d4af8732450fcac25975710cf80d8ee33d69564c9d65. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/USWR61507161.