David Christopher Daniel Wahlgren (born 13 July 1966), better known by the stage name Papa Dee, is a Swedish rapper. His most commercially successful track is his version of the Cat Stevens song "The
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 0x9a26308c0c1ecba5ae927990409bdad05aeab3fbf6ef74f3ed3e8bae4308e1fc. 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/068e33cf-210d-490d-9a80-bde876e6ae92.json and https://artists.proofprofile.net/proofs/artist/068e33cf-210d-490d-9a80-bde876e6ae92.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 0x57cb6d7306b4873c813155a2b2ddb5534595f9349be087401345d4a90f342132. 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/SEPQD9228030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339e09bc45db7182d437b5a0d708126ac76f108f6b01062eda751f6d71ec916c. 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/SEPQD9228080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc980bb7211d488ee537d6bca201b033bc9fd45711f998fa81e7976cfda19ff1a. 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/SEPQD9228040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1283aa0d918be84248997b366a3a565dd68b2f10ec1b2f6e6ca5b66b5c0a956. 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/SEPQA9313010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60df0a6bc6315e2177af7b1496e91aa32c2f9de3fc8dc80f830b23742d61164. 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/SEPQA1300193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b14a606abd85620fdc39ce495331858ed4b4c47eaa35468288c6eeee705af6. 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/SEPQA1101528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c1b705df073d6783fc340785e31ab51fe64ec536ac3b325b67f4c07e3ea774. 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/SEPQA9313180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243072e3ee094bfa475e246aeec5375e1004b17bced3459bd2740912ef29443d. 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/SEPQA9313030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7600d8ccecec2b3cdfaad4b938ee31606b31cc3a89968264c8789a968fa9d8. 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/SEPQA9313050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd526cf85ef9ca70f8eadf9f2bad8f18d1677516b447238d8ae8bb758e91dd4bd. 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/SEPQD9228070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454e0b35a55f0142b680e23b9abb2f91602755fb63e732d6724c4a51c94f8ce7. 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/SEPQA9513010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa563e2d8b59f80553585be898453dd47c1586de322fd60c0c59e0f92020561dd. 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/SEPQA9612040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f52e06046ce98c9ccbe62ddd46765eb6a76c777c3edb87a89c16bb683840741. 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/SEPQA9612010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e5cbb15a5d8eff58096999ed53bd2d4daa1d4e84fb272b19c6ada50b107dc5. 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/SEPQA9612050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9275a8a3e5d8d17a1391946ddbd5068eb41b561c4cbad291f51f6cf441315137. 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/SEPQA9800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4047071436c93d493f7a67708a5ea42433a72379d3f8ee9e4a31b9d4ba0b2586. 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/SEPQA9820010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f9ae0e826f9424cc0bfb623a22b36212d65fc5a1db87d99946fb971ebe3778. 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/SEPQA9820020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db6027ddfdbeac388b44a829f3a79834835e2d758093f4837df7d22e35e95f9. 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/SEPQA9820140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05c2d8167302fa681f367887ad3710828728bc0c96b2de4b5ed19bc25e3fbac. 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/SEPQA9820011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1be42ddd8c997b16d0ef046726d15c12606bedb487b91f1d610451b20d356b3. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/SELAA0301201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02c7107a74bc616ba0b3c270039c8f92c5a267b3fbb8981733a15e67a55c43d. 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/SEPQD9228120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300bfe202a7a379b6703376f243f5b94296dfc0e0dd7988902e422d7bf2185a3. 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/SEPQA9612060.
Papa Dee Meets First Light Showcase, Vol. 1
Sir Pinkerton Investigates Another Murder in Red Hut
Shelter From the Storm - Mixed by Dub Organiser
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57138b28377e96c17a173927ffeca8afd143677917f7b19694cbe9bbbe09892e. 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/GBMJG2507969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc5b1ef88c4a35936ba530c398de933c76dc9dc1cc78f755cf646b0416833c8. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/SEYOK2124718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454e0b35a55f0142b680e23b9abb2f91602755fb63e732d6724c4a51c94f8ce7. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/SEPQA9513010.
Ain't No Substitute - Pete Lorimer 12" Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60df0a6bc6315e2177af7b1496e91aa32c2f9de3fc8dc80f830b23742d61164. 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/SEPQA1300193.