thumb|310x310px|A depiction of a zombie at twilight in a field of sugar cane A zombie (Haitian French: ; ; Kikongo: zumbi) is a legendary undead corporeal revenant created through the reanimation of
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 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 0x4c3546bfe61601373b68c0e8b925bfcf0b12846c146e350a10e1ed1df81638f1. 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/9bcaa4c9-5810-4dc0-ba7f-6d42d3ab232f.json and https://artists.proofprofile.net/proofs/artist/9bcaa4c9-5810-4dc0-ba7f-6d42d3ab232f.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 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 0xda2f9b271482e5c8d6772fdd8fd6638dcdfa7ac24ff5bd5f812bceccad7683e8. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/JPQ321600037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b9f65fc130ff06c0de83b708103a4e846e420c1fa8c656748da02eedf17261. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/JPQ321600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761cc96bca35f860b91638d3ab200361c64649c510de53bb737375b4430acec5. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/JPQ321500079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a4e2d8601147d784fc7501ab8f1f0d2a423f1bfc6b7aeecdacffc432681b4c. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/JPQ321600166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c766c17b9642aa3ddcaad80d85c35cd80a66c5348bed957e38a58570f11845. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/JPQ321600003.
マダム・フローレンスの人体調理講座
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abfcae1e54ba8273fd7f2211fd7ce879929352c37f8a7e083bf820fc157fa8a. 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/JPQ321500082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea7247e385d031960f2606e39a3e333f62505e0e252248d0d3dc63ea5c09bbc. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/JPQ321600036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bee158e8772df1d0253e7670654a32ccc1898f4c5553cebaa67bcfa12eb1a4. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/JPQ321600167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3430b8ea410c58c4cac337f8cdde1b5d537b112bc377db96e4022d8c2125ee4e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPQ321600151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0291d001c8a3b328bc3c032ce6cf48e0a56ca53bdffc7bf6282d283b0bcbe2. Chain 2 (Bitcoin): anchored in block 957705 (2026-07-12T12:50:42Z), 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/JPQ321600150.
だいっきらい東京/神様ごめんなさい
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43dce9bcbcd064e07cb294038c6f421140f3321ca41216cca740a5e12382cde4. Chain 2 (Bitcoin): anchored in block 958399 (2026-07-17T10:39:51Z), 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/JPQ321700139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9acd9325b7cafc1714d63798413108b7c328f197dd9f58c68b498bd749f6a23b. 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/JPQ321800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3d7b3d9bdb8ee731f9fdc38a32a6b3460ae3033e02bd2009914ba15bd384db. 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/JPQ321800143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee5d2859d343d799edf1bde37abe2f3b2de8b08a5214db44f06bab5265dff58. 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/JPQ321800144.
Subete ga Owaru Yoru ni / Nikushoku Bakuterian
すべてが終わる夜に / 肉食バクテリアン
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf3dd6d855e64b5c5fc8c357d585eaf730742ed68e65da67e36c14274fbc105. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/JPW641900154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf3dd6d855e64b5c5fc8c357d585eaf730742ed68e65da67e36c14274fbc105. 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/JPW641900154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c8b57808116ab37614a54b2f03a0153b60b0546b615eaa353ecf38141866c6. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPW642000059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b981b3843e5e54882df78abdd257518f43fd79424c5b1ba49fdf3c8fbf38edd. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/JPW642000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8767ca650e3fb479b1ca7b3cf85ae1c4e8c25bba7ff71f49689f666e0e7f597. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/JPW642000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84644882c6de06ab1cdddd3d0f7ad0ef8d1f00f447f65ce74e2683364eaf4130. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/JPW642000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30d30f01521b3064082df15c3ecfcc68fe568ab871364fe297c9a5cc6ac63bf. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPQ322100158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a6db7e769c587b5af248e51742faebb68a267a0f12de06dd2a0e2f9bf440e3. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/JPQ322200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb41b3580f56e0dc4d81513ef717dfcbf24f9aa2e7a980ba6f64810e18ef0a65. 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/JPQ322200175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e4bb694a1546ee5fd720018e2e4f098f144f2f6febe2913251ef5149bc94e7. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/JPQ322300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82178d7c1a60c2072135733cde2e18217e8a24f737c8ac83b5895c39e1a3e18e. 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/JPQ322300167.
ごめんなさいのメロディー／Mr.ゴミ人間
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc806b79985a52353f9dba9c1896aa9cf1f79be8d8c08b4544996e1bc67d09189. 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/JPQ322300166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40940b463678e2a1ce87fde552ed99abe8131220306c09a58fdab22c1a203d1. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/JPQ322000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd47b18181dc5106a9b6fe06ee7bf480670e35159038302e6ab48ae728d1942. 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/JPQ321500080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3061827ce2ca432d6a762a632494ddefa96d6778b7ca2e3fc9f579c6209b4d9b. Chain 2 (Bitcoin): anchored in block 957711 (2026-07-12T13:56:57Z), 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/JPQ322400193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3061827ce2ca432d6a762a632494ddefa96d6778b7ca2e3fc9f579c6209b4d9b. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/JPQ322400193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f452d8306735a4e1d670ebfc0bab6f61eb6df3e4e4d669db7f9badd6d1c48f. 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/TCJPR2294244.