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 0x2c6a05d1a6bc3e800da992c8ca06ba8c3d6d3ee9c415de5a0dcdaacaaf0a6394. 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/e7ccb3d8-27f6-4907-93f0-fab12a3d2ec7.json and https://artists.proofprofile.net/proofs/artist/e7ccb3d8-27f6-4907-93f0-fab12a3d2ec7.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 0x9ce2ea1f36b49dc518b7c38d55bb326a33fd75ec78f9c20a484894c20c4eb37e. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/JPW462313797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9359ac9a277debfeaa033ea057961a0008827ceee706d7b52371ed7a3b47d961. 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/JPW462313798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08644025c6232f3582faee0860a37669fa4f9c2640c8c8fb297bd63b7fd20d2d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPW462313799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245c78b918034b7c421286ad5cd21f0fde2f3489c677bf84a0f8cf1746f56b5a. 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/JPW462313800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c28f242015baf7ca183b980a6049c1dc0f1ae201e8c027f9a6713573834cb3. 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/JPW462313801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc670cd2224befc79d51f175b335c81e48e56131c51237e707308cf4180bac368. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/JPW462313802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206ef468096d1af5ec4811b5a3ad3a33dcac0a98ef50a3ae3b7b61bdde357bfc. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:09:14Z), 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/JPW462313803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1a599b97929e21cd3f471e792ab05aad02de07086a9580a3cac9468685442e. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPW462313804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944d270f5f6bfd72ad552645eaa0f83e464a76c55e1669a291b1654674fd2d59. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/JPW462313805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54498d7a399900af6889ffcf22946fc21e305c20715a6865f159123f7f80c30a. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/JPW462313806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa68dccdac912910f43c461ce27a37dc459f99e849332cd9715d4f5ea1c1f9ee. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:41:14Z), 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/JPW462313807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217f91c47f3d7f5d71c2073537aa6dd0e70684403552be7bea24f629a64193fa. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/JPW462313808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44971d6116e00f791328767b921b788d0ddcf8a8dd603115454118710fed790c. 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/JPW462313809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c7611e259ee6fc7e610e0b18bcc347131d0c29cfecd1e8a7a3362181f5c742. 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/JPW462313810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75728fae8a9778f2378f5178c5a55ef794a973c394950bec9e7b15fd3bf9a9b3. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/JPW462313811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582d02e4f1fff91843fcfca45416a4814023a0f86173ad07b53e168ca4f0737f. 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/JPW462313812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e0f610a0dcc86434f88fc5890b7997b9575506bee6ef040f673991c35c94e1. 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/JPW462313813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8c9c483f6353552e4e3b13ebec9e3b9c25d515c03cb8d01a336264867e86ac. 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/JPW462313814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cade38481f9e403cc0728ebaf4c85de445404effbbef7e143ca3058fc80b6bb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:53:14Z), 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/JPW462313815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0708c839b90e5e1cf95648af466eef0ea836bc8e75cc87f561682b4036e5794. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/JPW462313816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6092d0389f4e5cd1333799af0af62148415ae9be7433e0fd7ef1e12d40939aa1. 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/JPW462313817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374a20e06ee41cc775ce606a7ffd8cb2f600eea3be50d439f9eb618497a129c9. 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/JPW462313818.
Rhythm and Brass: Energetic Jazz Anthems