Stephan Allen (born 11 November 1993), better known by his stage name Dutchavelli, is a British rapper. His name comes in part from the fact that he and his family (including his sister, Stefflon Don,
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a00f910f2d25d7d03b1178319b15ce0f411766374cf2b44fcbdfde4f6004998. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68dfb460-c15f-4c1d-b9b5-55aec57dfd8a.json and https://artists.proofprofile.net/proofs/artist/68dfb460-c15f-4c1d-b9b5-55aec57dfd8a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bando Diaries (Remix) [feat. ONEFOUR, Kekra, Noizy & DIVINE]
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ede988df94acaa326172fafaddc6209cf3a00ea0fe7277f97e444710ae2b3fd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBAYE2000997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109246f24b5749f96c338603c4d9a12ede3a618652d23e00984a938cb3317267. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QMFME2174481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceda32becdde41f8eda6575b104e4f81833579273cedde398e381719f93c98aa. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCAHT2440378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8babe82d44a5930c5d30432a2cf7699e24b637fc95ad7488ec06b675c74e31. 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/GBAYE2000504.
808 (feat. dutchavelli, DigDat & B Young)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e26f9b4396f7efd124f68d7cc535404bd0bdd28f97d0135a30c8d36fdc8274. 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/GBARL2001046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8babe82d44a5930c5d30432a2cf7699e24b637fc95ad7488ec06b675c74e31. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBAYE2000504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddd526af40e264e5340659325f4bf75e83a8844b88885beefb17c78613f2bad. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUBEC2060071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddd526af40e264e5340659325f4bf75e83a8844b88885beefb17c78613f2bad. 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/AUBEC2060071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75202a3e7abed7eee3d02158646519ee2def8e98cb9ade17d542e391dddb993. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBAHS2000336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8c9a2b85d7735e286b1dbd6a4cecda78584b014068d252ed42ad03a91ab822. 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/INUM72000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff32a79ed0d8c9c39f7fdc9f76bf560514aac5271935a31018c95738ff65fa7. 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/NLP1J1600029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff32a79ed0d8c9c39f7fdc9f76bf560514aac5271935a31018c95738ff65fa7. 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/NLP1J1600029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3e8841bfde3b0b79f264ab718fe7b2d974c021164bcaf3eebf948cf4aaaf43. 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/ITUM72101353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8babe82d44a5930c5d30432a2cf7699e24b637fc95ad7488ec06b675c74e31. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYE2000504.