Dookie is the third studio album and major-label debut by the American rock band Green Day, released on February 1, 1994, by Reprise Records. The band's first collaboration with producer Rob Cavallo,
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 0x8fb49970af4ba2ff76f0e2d76b411f109d9b77bd25cab78cab48e96b3043510a. 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/c483c15c-68d2-4e9c-8f6f-70f1a2704c39.json and https://artists.proofprofile.net/proofs/artist/c483c15c-68d2-4e9c-8f6f-70f1a2704c39.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 0x57b4e84adf2ca4fd8902a1a58a76a20aefa32bd987fdf0f345fb12bcbe8c0d6f. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NL4DU2000184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4939b7d647886476b0adcdc7dbf046cd5cc545b7c98b295da89b31eee5ecd109. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/NL4DU2000185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc054c59e2f55d7fa8c6e427c3f9be6b4bb2028750fed891c8e6e5d00e0c434b9. 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/NL4DU2000186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfed92b75ca36fd31e1ab869cf8a3b332bd051e3ae798a96395e68577e293609. 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/NL4DU2000187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c90717dd238f4976956c578801819c40247abffbd91eef08c7ec6248b8e810f. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/NL4DU2000188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd6e3df4cb3bd5f9085e0c3d18c1eef20381915897edd7819d1ce4877a90b1c. 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/NL4DU2000189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c3ccdc708b58b7d305fc9c7e3827f474ed206592a1bc40aa892f5f32a45b92. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NL4DU2000190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c034056c70bcf7f2e3b5f009a0537281fff16526e304fa50ccf69f5a55fbc8. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/NL4DU2000191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f2b758f45663bf2efd262db8f6dbbd137bc88d3807f0ea903e49e8674858d2. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/NL4DU2000192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ead8be691269c0462046e26a59801acab3820986ee6e8f91773420cccc1f89. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NL4DU2000193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9dc9648703126a52406f78baf2f268414ed98d1a4f95190b0002ffa1dd1e70a. 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/DEQ121642606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1187e77cbed02a9dcb14126ef9d06ed9ff4e977f335d5b0049e5a35925d4b7. 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/NL4DU2000307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf549db18e6e95ee05bbb868e550b92bc13550d22162d7f2a3eb6d47337787363. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/NL4DU2000150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd477994b529d81ffbc081905c4395fad57b1ea307c75cf7ff9335fe7e320398. 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/NL4DU2000153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb30f3d3af0a56ab3e88766125d1fa44a31a103ff0cae4b851a2552221cf979c. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/NL4DU2000159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ace5546aa8cdfea5cf6e34be4927b85564061f0cd0045622c26e8e6d3dbad90. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBLLT2204111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f91a0226480cbf54a530238b7277e8055b32f9f58707de1cc92e4e0a5d44555. 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/GBLLT2204120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fc483a43a9d8e9b60e46ea759797b3d1e0557ce8e68e2598caccea1f738c93. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/NL4DU2000200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92397e0b25f7dc880eb415cefb7613ea11d0211d7077111060be538b03b74f1. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/NL4DU2000204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e54ebdf8b9bed45d1e7fe60e3e3b3dd808d9a405010e9202ea9ef4abbc19769. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/QZFZ42109707.