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 0x24d223a229718a491506bd3dc05d0232c8c69af32869864aeaf247e6db726b9d. 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/162fb593-ed75-47d8-9dc8-7ab015d3bdfa.json and https://artists.proofprofile.net/proofs/artist/162fb593-ed75-47d8-9dc8-7ab015d3bdfa.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 0xf70f736e332edf47e64bb98b95e24e8298196540eabf1de1312c31da75973b3e. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/USCGJ1768456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3425745d647f08050c9add883756e40e591ee1cacbd233bec29b0ba4862f96ff. 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/USDY41816307.
Grown Woman (feat. Talentd & Allen Heartbreak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9f801b7cad6effb8e3ca8a4d95d270dd0629f79b580a72f043d28ba8089fc7. 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/USDY41902903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e47244e060e4ade296d55342006ecf8b3518e6f8544253f2a239be2c9908d1b. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:29:51Z), 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/USDY41902904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e136492a5e6faaff50a0915aee2a74ecd8b69062986737942d4a89f949d8a0. 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/USDY41902905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010e26541ce2012115e43ee2f3c84ab57232df7f21cb3f5fb74eeddfa29c18b0. 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/USDY41902908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e3c7ebec9bbb545999555b85335158b4c0574df673837994e9f8a567fbd6bd. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USL4Q2378267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b243cfe17397a1a852a371d562420be61e5269c960fb96b504bc7710a40a1c. 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/QZDA72418652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7722562d51904a2ad27350276398d7350d7b3779debc3a0888f9c9b9cf09e3. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:41:42Z), 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/QZK6H2469486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7927d69df78c8a5d4c0070f43fe1ef95be28c1ada79795d8894f751e08660122. 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/QZK6H2469487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5027d746e5a27d119bde929ea15204d275af0237a002ca733a256406d60966. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZK6H2469488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2533327868e684e834ba1ffaaf8a07ba61b7256f2dc4b79c0519e5070d9af95f. 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/QZK6H2469489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc702a7662de8ce6879f82620bc747265e9b3b26e5deed912133a4b473946fe62. 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/QZK6H2469490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d63a800c5a0eabd54e417fb13deaf9d4c2da23af7424931e5b9afb6394961e2. 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/QZK6H2469491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbee95a27d02ad29c1f5b1a177d69bce8479b455bf8347a776e02960a683730d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:45:35Z), 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/QZK6H2469493.