Darwin may refer to: Charles Darwin (1809–1882), English naturalist and writer, best known as the originator of the theory of biological evolution by natural selection Darwin, Northern Territory, a
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 0x4811905e2314a171a472c0339f9b95a60205b91137d33f9982470c119e8cfa9a. 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/5955f260-09f0-40ee-9a1d-2b9464361405.json and https://artists.proofprofile.net/proofs/artist/5955f260-09f0-40ee-9a1d-2b9464361405.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 0xd94f352ab9c5627b66dd9afe06ac8297d24774a517b878ae3f58b1eb61350f33. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/FR59R1882442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8f487d301ae488212427e09c38cefd2f394845b4fe94cafc52968c5dba5b04. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/FRX201827754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc28232edcc3b2dc629a94d1ffdc2bfca79b1d4d1cf7da402fa14717fd01b8ef. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/FRX201827756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b7ab267cce2a4ec3e9435b44ff973d48bd0c22b68ecf0e0d35830a62592b46. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/FRX201827765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f496743981137d5acf78c02bb65f88b6524b9f01261275633551147df9e73d. 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/FRX282015612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f496743981137d5acf78c02bb65f88b6524b9f01261275633551147df9e73d. 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/FRX282015612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b51790445cf13ee92973731304501027e09aa5879dd4782626108bdc182991. 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/FRX202051957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510708fe45ab0052309c37139230effbb71fcaadcc022128915b122df04d8d22. 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/FRX762067195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fb63d21ab77bd0d181166150e8345ac89a205121b717359dc04413a2d3c68e. 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/FRX762072817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9c880bf84d693e8fdd63cc286824e45446c8056173343ebbd05bed85264ef6. 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/FRX762072818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674104716a768a2a68aeddfc5fb315ce29525e5b9e916cc0550631ab55a74087. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/DGA0H2360164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50219a9fe591bbf54670a9a7c412670f9e431c8627c75b5797bd8e676ed8b43. 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/DGA0Q2317581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7546f0a352207fbab0dde996f1d4480c901386f0d32a5f6133cfed51c5c162. 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/QMFY82300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50219a9fe591bbf54670a9a7c412670f9e431c8627c75b5797bd8e676ed8b43. 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/DGA0Q2317581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674104716a768a2a68aeddfc5fb315ce29525e5b9e916cc0550631ab55a74087. 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/DGA0H2360164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7546f0a352207fbab0dde996f1d4480c901386f0d32a5f6133cfed51c5c162. 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/QMFY82300083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c064f72b040f4584567c54dff9e980fe014a586d2d18af7e44b3f5d30aed637. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMFY82300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ead1080a98f56bfc6a5608b459da51bfcd8713ca86c6b914a71383e1bf9583. 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/QMFY82300085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604bb3c6a2f06f0c319b8792dfb85aef4bcb0fb6c6e851a5aa031872c656b08f. 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/QMFY82300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6791311950deaf0f253bec4374c5b2d2760edec753229920f2fd9c8806a652. 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/QMFY82300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9033ccce4223761752ec82cfcbaf247d198afa130a4838305870192f5bcef41. 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/QMFY82300088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b08a8ebc1d15b478656ea5077b2f13652e07d9c918ca15f01a5bef0af6882c. 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/QMFY82300089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdf7903c7e43d5848d10bfb7203ef7c81a657481e89899886068a825fc1afae. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMFY82300090.
Man vs Machine (Featuring Simon Phillips, Mohini Dey, Greg Howe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17eec41ec0b8d8814ba35babefcda596734e173bf49ffa7b57aae349e0a7ab8c. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/QMFY82400093.
Loophole (Featuring Simon Phillips, Mohini Dey, Greg Howe)