David Morgan Thulin (born 17 June 1983) is a Swedish music producer and film composer. He is known for his Reconstruction album series, multiple chart-topping hits on US Christian and indie radio, and
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 0x28b9148f62a0799835a1ae4ab9e8086c7b2eb04c44379a15025a474aac2a1f41. 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/ad40abbe-bdce-435d-89eb-33839032f34c.json and https://artists.proofprofile.net/proofs/artist/ad40abbe-bdce-435d-89eb-33839032f34c.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66e201b5293bd3a76d1832295764dbaf518794d600d8b66ce28d744de24620e. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/TCABF1295906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa6183ec911d239e7a6d7ba4e0c7f455eac875cece488f7163043809e3f3302. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:27:04Z), 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/TCABF1295916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b5f47aad2434946c372ba9b5e172275a67915e85c17534ab69667aeb838e2f. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/TCABF1295926.
Love Audio - David Thulin vs. Matthew Parker Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9c9b4096e4cb73b28e6c22a88a9eb706693fea7161ca13abbe28d55a7e9c74. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QMQ3X1300375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e7e0ac8a15950658afc7fff1ed8c20c997dcceec5f587ed58fd99c0db3f79f. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QMQ3X1300430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e59840365fd473715cd37c4862b1d0ffa0d5942aa4a7184895a278f070305f. 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/QMQ3X1300432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f95076b3be7d6869e9a83bccc69d185acc46eeb8e5302f36f416b084f655ca5. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLD681701375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627a16997ed3a24858af68bebb06cf400478c49d3179db1a0fc275e5d75a99c8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/NLD681701370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eef12a55af8578e0cd30068035272ac6b4dcf21157c70d66bc5b5c520324a06. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLD681702671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6dd4af1399c0a4f86a08080c08b9ab53aa7c39cd7d8c28eb5753269cdfc6ee. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMQ3X1300248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cde6e31662c81e30c7b2f2ca3602f3cb5a96ad436abbc1c1e00e93682b97c5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMQ3X1300261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616c118d702643f0cdcdadcfedbc1aa70cc21b3315821af9836deb23181f9462. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMQ3X1300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651b22fb440345d4d20b9c089695c3e9ace820491fdc15ef1d19a586f1a236c6. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-21T17:19:46Z), 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/QMQ3X1300257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbdd38eb6407b0b64672bab69b84dddcde8938676ccefb81750d1ae1e19425c. 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/QMQ3X1300252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc860f04004f023a0f5116c8b0c97e4dae614bdab0e8c80cdce0d8fdafeeea878. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QMQ3X1300258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecdef2fcc6f53e4f3544530ab2fce39d5eba1e6b5869eec0053a6904cde8a27. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMQ3X1300254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c18db3320b3052559eef65d91e7969a7ae9c964885914b65178986ee734f29. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QMQ3X1300255.
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 0x39d16a445dfbbecdb0f3c323eaba2d1b5f78a5cae705a1e9b47b9563f44ed93f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:24:18Z), 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/QMQ3X1300359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6317a33a3d3fdbcd12069eb79ab9b2ac84e310603e088d23fea3754e1107b6. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QMQ3X1300251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb3f98b5a043ca944fa65d49fdb361feacdf0a805a1e86e00b51fbf5aa32627. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/QMQ3X1300249.
#putyourloveglasseson - David Thulin Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42845cb01964848947a1bc27025ce7e9a49571612785f1520b252401452c480. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QMQ3X1300250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03452b6e373870bb34879ae533537fabcd322e44278f820f62282dc40e29373. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMQ3X1300259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00866428a51fe111d24384e278b3f6d2688f76bfc51d94d76d6a47775aa31b2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QMQ3X1300253.