Dabu may refer to: Places in China Dabu County (), county in Meizhou, Guangdong Dabu, Ruyuan County (), a town in Ruyuan County, Guangdong Dabu, Gan County (), village in Gan County, Ganzhou, Jiangxi
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 0x29b52ca163019c48ffdf4922439bb5588b30044043a2d15bb418b303a7e47a74. 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/01092f90-a9d8-4a79-81e8-fe19ee3cdec8.json and https://artists.proofprofile.net/proofs/artist/01092f90-a9d8-4a79-81e8-fe19ee3cdec8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Winding Worlds (Original Game Soundtrack)
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 0xca5dc442eb828b2b82d47fd78d15463c4a05beea3ad72b5a5fb5ef1d20a3d099. 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/QZHN32031680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e2da540b84351fcdca04ffebceee5b31fb734caca7f4b1bc52fc1e220194f0. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZTB42283032.
Dwarf Fortress (Original Game Soundtrack)
Dwarf Fortress Cards & Ambiences (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a7093b771f075da4b0611a5f5934c06dbaca87fe2d5ba6a6d0c8f67bf747ad. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZDA72329779.
Goodbye Volcano High (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd693fca1d565933dd1a808fc4da8af45402af3b84324c3be710147a5f68ee01d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZRP52392701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4cfe3c23dcd6864b113c35a6d6a2608a6b9a7938ce626fc1497f4ad45358a5e. 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/QZRP52392704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc89bd72b3289fca14c85fece33862193662e857440f5c1f85b01466c5ea1f57. 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/QZRP52392705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5283989a915a88a4cba1deff8879e816b0f9e4961c63c69a7c6b6efd4fa67f39. 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/QZRP52392706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b088d9e234a4a6efafc4ca2f23e33d6e2f5b645884bc33cec8d00ed63e53d76. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZRP52392708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287cb65aab0d65fc98127531eec05c88b8b9e4ea2bd4af47ec58575d452a089a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZRP52392710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9403a3ce65816709ebf741551790fb6ec1a90da6ed6638603bfbff7e434ceef3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZRP52392711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07326ad63b2e3f771a81ccb111574931fb17432b14cadd20b3de9d545475e9ae. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZRP52392712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4694b18e080713773b73e869552a9905c9b6bb54227413c4355df2fcbbfe777. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZRP52392713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a0bc8a61a4635c54964c4f9ad7320babb5270c6d72815611ca0a2b48567154. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZRP52392714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09992809e3b95ddf8062bc804a1c6679a76de141c349e9ec7077330ed391c298. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZRP52392716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e854be30f5017269c76d6562247f9f387dc77883d612ce8723a309b2717c79. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZRP52392717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87606d0acd2a6a3d2f06a52b91a7d0e13f809261518d5c7312254ecad36ba2fe. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZRP52392718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5e409532f819f7330b2d2f9be34720636968aa3a35d09b66ddd4518d116e04. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZRP52392719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48eb9f75759d420548866a71103ebf568374ec667964a02dd71237a727cd2ce4. 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/QZRP52392720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abf883633e24530ca49987a0aedfc7036b36dc0d7e29ccf5cbbc1cc5a3ac76f. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZRP52392721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9fdf311c7ca848edce533aee0aac1c9b34026e67b396c902704836785daa8f. 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/QZHNA2441464.
Dwarf Fortress: Adventure Mode (Original Game Soundtrack)