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 0xab82bdffa310fa0154e20eeb5bb0a7f984fa4a146d6c94e174968cd5ea488ad0. 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/a1e4ed65-037c-4900-aed0-f60bd9cf64c9.json and https://artists.proofprofile.net/proofs/artist/a1e4ed65-037c-4900-aed0-f60bd9cf64c9.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 0x3e65d6444073c0c51fbd95cb18c4e05ad93099460f77ab664169663438911dd8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZNWQ2228074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c22363f65426f87683a7c960d36b49483ad0455db1de9a1776c7cc95fed51d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZNWQ2228075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e636b2f25c995b7f4f2ee6d652e2d3f43cf22117c4ada1697a4e69ada45ec6. 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/QZNWQ2228076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1186daf5672f4f69bef8896e55db619965b87155a33c91066f7ebc10bdc059c1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZNWQ2228078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ba79064fe6dcf2ed00512c002c30e8ad07bcfcaa13e8d2a1dc7f099b3236fe. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZNWQ2228079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27160e7c007f07da086f54fd81da6e0ef85a8009b970d9ed836256193b5587af. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZNWQ2228077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee555103eb4f2c70999db29f4cbe7d228d38fcd355cbd11cfe8ee34fdc4e7f9d. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/QZNWQ2228080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f21e0bf5475248f6aa3756e33a4bec63b80747bea9c06ff72ebd4ad3096fea. 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/QZDA52079836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e2856437f935ecf727d973947cdee9623f408dc7e9bde4fb98b30ef13ee383. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZDA52079837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba49f5c2005f9dded4f769ed80f02dff10accc560c03b675a1ab029c946a049. 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/QZDA52079838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafea921519cf845111b7c3cef9325b0d8c5c3dad6eac8640539d5aa4327056e7. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZDA52079839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e81659cbfd05b8bcb73f8b841ddf10cab3dc904f8596d6bfaa0db09ff7916e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZDA52079840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47167fa13a1d0c8743dfc9b98e8839c891ec43b1c66089a581571dd6dcd40042. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZDA52079841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9727393a65710febbf753751f0bdc6f7603fe17e231d4333aade078c8052ae9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:36:08Z), 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/QZHNC2334567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40f5a336e93678aa2daad75f342f8e48f9215cbc35d42988f2fccfa6ba77345. 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/QZHNA2358240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40f5a336e93678aa2daad75f342f8e48f9215cbc35d42988f2fccfa6ba77345. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:35:59Z), 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/QZHNA2358240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2180333a86db4b010d3018ce9f3580b0265ea3fc8b520b06d3b84db8db1ffd. 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/QZDA52341675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78c391a47b11ac39118833fa6aec24e38bb91a939b9c8b225f70b1cd3adfba1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZTAW2214893.
Thirsting Blade Dark Excalibur Mega-Genesis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50aa0f7e2972fe210acbf03d92e59029181f7b6086e49d55d2f7622ba5d4c1b0. 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/QZTB52271330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50aa0f7e2972fe210acbf03d92e59029181f7b6086e49d55d2f7622ba5d4c1b0. 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/QZTB52271330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78c391a47b11ac39118833fa6aec24e38bb91a939b9c8b225f70b1cd3adfba1. 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/QZTAW2214893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5735f26ce1153ea0c8d02a19e35c04d0e5c6e60ab88c41360a8fa4c967b25050. 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/QZNWW2124314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0217b77e10eb6e21d816dcf61a6ed7e1593fe26bdcf4e76eee45ac9f733573fe. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:32:43Z), 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/QZNWW2124318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5735f26ce1153ea0c8d02a19e35c04d0e5c6e60ab88c41360a8fa4c967b25050. 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/QZNWW2124314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1614b806c764664bbb01bdde30dd3723afc7f2defc62e52629c1b33ac1eb12ad. 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/QZNWW2041987.