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 0x560548b5f6cc4d77a77a851efedb7f9bf8880dc3f007b9677e9be55a5170f970. 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/393655c0-1d29-4212-b31d-65b76d0881a2.json and https://artists.proofprofile.net/proofs/artist/393655c0-1d29-4212-b31d-65b76d0881a2.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 0x410371801cb4ffe1f5daa51751f86b576bb0443bb93254362f680c3664e766ae. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPS801912200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebd670d23ad7a595babc49abfcd921230ab231af75240a0a38fa86b080cb834. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPS801912201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e522ebacbeba3053aa8fa425e9b3c583b06510a6735774f203397738984ea9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPS801912202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f5a3caa14fd5c3ee464ad8a9f719769f77668f2c6948261c9d8cf762de82c4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPS801912203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ab162ed80bae35652680ef7b16937a9d9b42bc26524c041120fb91cac24415. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/JPS801912206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3769535022801e7ed99511caed6c0a5672ca8e54139fe1f4c1ae91ba818935b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPS801912209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e846f605f86ee29b672bddf31e6b4bf83c7e27fdda257a17a6d37ba61689785. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/JPS801912204.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4671672267a78170ba85a00da512ba39c46ae10dd186b090bacb82f9f148a9fb. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/JPS801912205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b234d24cbb373bd0c884b07d460ede7ed2460d7d0a35794cb2ec9eaba644b2. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/JPS801912207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12553bb0c93d9c688fc58e506e58d485964aa6fb6db3092f092b6b3aeb01e890. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/JPS801912208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1854a9026352e1cb528cc9ed4a4c3e54c71b726af340e78cbbbdf49c2854fb. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/JPS801912210.
Luv(Sic) Hexalogy [OMA and Shing02 Live at Liquidroom]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8428bc3b43a2cc6b8a8aa3368f764421d3dbf88bead95275de6ad7a8669765. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GXD7G2489131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f86b077f92aa790916413febe01fb542877cfdfc946628f376a09a53a5a3de. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GXD7G2489129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867ee7450b0bd03ff6b2d34d20b8ba26e444cbfe477c62daec3736fa31ed7a3c. 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/GXD7G2489132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5608b0ef62c10e8404afe3a12da6a16b3dc0e8bfcc6de630a7bf1a39e44bed14. 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/GXD7G2489130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bcb0055afbe79e6e342285ebe5a18dad38654e04d24e46d3aac7b27d1783fca. 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/GXD7G2489133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43002ba19e59e090198d28443abd053e01e47409606f9da67c2d020a671d364f. 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/GXD7G2489128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8519ba9362b3e148d2ab45cac932e028e6268b2e5f8ae86081458b6b8388966a. 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/GXD7G2489139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738a525d58249d263e3a37165618d2e2d43c2877839dfb956f1ed30bd52b9b8c. 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/GXD7G2489135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70dd368ca06fb837fd3b155be99e043dc694502b4c5fb5eaf697ceedc3e7e96. 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/GXD7G2489138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b540c2230397e738d3242d93858916b8e5ba06ebd9f1c582c18edfbed36d4ee. 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/GXD7G2489134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e899e3435b2b49efdc9bc4126e45597818aebc35832f3a6762cc38a1a40aad. 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/GXD7G2489137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e66c4ef19c8e7e7c0801cf6e563eb345e48a55f878b188d97821c5b78ceb5fb. 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/GXD7G2489136.