D3, D03, D.III, D III or D-3 may refer to: Transportation Roads London Buses route D3, a Transport for London contracted bus route D3 motorway (Czech Republic), a motorway in the Czech Republic D3
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 0x586f8abe68e68e7acfb077296b6af5d9e882d98c2724982d30a5e8fa192e8a4b. 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/76a4bb95-2f1f-4c56-a2b1-a64f87f9208b.json and https://artists.proofprofile.net/proofs/artist/76a4bb95-2f1f-4c56-a2b1-a64f87f9208b.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 0x1514c620dabe6f846221a04011d1d20adcee34b21e38898b6c6d09596cebd825. 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/QZK6G2069368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab08a712e0443847161b7f466b6c8a493cc45adfe78d17632cbd9d1cad99dde. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QZK6G2069370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a89770718c8b5577c56c5306080d6dc983a8896637ca5eba1f1500fca84bff1. 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/QZK6G2069371.
Mı$ıl Mı$ıl Uyurum (Chopped Not Slopped)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab59a11bcb23fd31722848ebab6edacc279ba60245d028b33e5785ed35444d0. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZNWR2095170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde77ae2f1d832d028ba30a36d545199ec18be7335bc3305efa7409636f8f882a. 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/QZNWR2095171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76f6a03908320b6c22bc7c7457a417740ea56b413b746117eb287f63e49559d. 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/QZK6H2191772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f500cc6326fc97a87c9dbba291301d70cc9b0517bf3cb2480c1912d6a106d1. 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/QZK6H2191776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819457d21d1806ebb05f47edc92de1708d2603c319126826da22a965785841b3. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZK6H2191774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f500cc6326fc97a87c9dbba291301d70cc9b0517bf3cb2480c1912d6a106d1. 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/QZK6H2191776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5aa5af2ee81e5486f68f71235b9c0764c05ab97347d0f8a19347a805a9b6f77. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNWX2132861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5aa5af2ee81e5486f68f71235b9c0764c05ab97347d0f8a19347a805a9b6f77. 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/QZNWX2132861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eff864864b01f4b766ad7ecb2cc31fb030928ed223d16c420ce96ea536be05a. 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/QZFZ62212126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628416059a1817c3564f0a16459bc3525936017cb281537a34ac2ebb910b86dd. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QMBZ92295492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0273647fc72c1a716d0a20bf88a819c5e984fa11736534925e9b5cb9b95b5e91. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QMFME2397639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afbd059c2e7a20373791a8a8e46c2dcb987badc9d421ec8c47cf3b0369449c5. 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/QMFMF2310108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c6da570cae9560462b45b5e5543ef541a1ade1228cdabdc722880fd1416fa0. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QMFMF2309511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6032ea8689ab2c42c6ba63e9676ed84137629d2a0d968b83ff18346f7f9d301b. 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/QMFMF2339724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4119a2f98219a02d0c95798cd2d05e410f0a82e2c102e294684a7ec2d81a86. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM7282413533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d141bbe4cb74747f3937f9eaacb258dccbe892e289b9cd9ad7bb7771d5b2fc2. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/PT1KG2415799.