Douglas Joel Wieselman (born November 30, 1954) is an American composer and jazz musician. He plays primarily clarinet and tenor saxophone, though he occasionally also plays soprano and baritone saxop
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 0xccaec8587ff861be0daa6fce70cbc624a17e4c199c3266b7af1ddfbb3f7a1117. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a4f52dd-428c-46a6-b834-0bbaaed37064.json and https://artists.proofprofile.net/proofs/artist/6a4f52dd-428c-46a6-b834-0bbaaed37064.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 0x5f317d96b67bf20b5bae2f9f6fd6f07fdd23fa7628abd8d60d90f3d2a8d650e9. 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/US4QP0439701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fee88b3d4cd5ae8184513fde6e19c5b205a9a7680665af01843b3cf2ab4451. 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/US4QP0439705.
Arthur King Presents Danny Frankel, Victoria Williams, Doug Wieselman: Roofrack for Ralph
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21003ee11c831e433b1182ab39afdfff94aeaf17758c0a6b4cb67172ff0680eb. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/US3R21816805.
Dimly Lit: Collected Soundtracks 1996-2002
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191750ff3dc4084393897c4e6f9b653a8c6fc72aa37360060bd515558c4611fb. 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/QZTAT2457611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ff497b9cb918244e0c9e37edaa570e3f37b7397216ed9485e18f8121e75c28. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZRP42489163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71324410fdff3cd08be97bba8ed7a683c795632115398a5d956e8abe23b7ad7. 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/QZNWQ2465875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf074f9b7d3fa9a881a4818f1267509a2f09f2734ce4eceae26cf54f454178935. 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/QZNWS2421148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6661aa81e1c07f5e8eff6b210a8902d904d4e7fcb2b689c795b00acdd36c4fc. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZTAZ2417488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04298612c4d20526d614b0b1ebed511dfcf5c2ad854c20c4aaf9c34b2870c736. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/QZNWY2443301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191750ff3dc4084393897c4e6f9b653a8c6fc72aa37360060bd515558c4611fb. 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/QZTAT2457611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2eb42c0a0cfc6528b6f0f3fe4c634d0e85a6a6507d199ff44a46f59f193fc2d. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/QZTB42438853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6703c45fb2fd25982dc8a2ac581f18ac86a6699b01f6f0d39f2db1a940c24b35. 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/DEG932101541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0faf6f28806477a30e52179814e807e6ff34679be51c8e6dafd8a41072658ca. 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/DEG932101553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838a2624231223092cca26742be0dd1592ae3953c6a5386dec66b7b10907b02c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEG932101555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ff497b9cb918244e0c9e37edaa570e3f37b7397216ed9485e18f8121e75c28. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZRP42489163.
For the Birds: The Birdsong Project, Vol. IV
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4786142fc82c32ad3407f73fdcb3fc2bfd3413df2001e98264cdacdb993964. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QM6N22287125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee61171b99f12404291dd3b7d051615f32fa9922ace93650d249985c1b2202a. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QM6N22287127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96588e205e377f170cec22455d3ce3ca0340f636eae4a823bfe6ddbc029e73f. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QM6N22287411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfe619dbcfb872b72d484eb957f34583468dc18391c97dc9a855e2e9a424487. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QM6N22287129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09fdbc28083558fc8a90ba04172ee4fd501fa353976c32dc205a400a899a431. 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/QM6N22287278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc909ad8ea3a34ab1bd6c6954500d53d125dbde302fe6fb868ea348ee7ee9c2a2. 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/QM6N22287130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecb66a363c52f431b5fdce4184ebd298fc42b3fead9ca8d7bfd6fce1004cdee. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QM6N22287132.
Wild Birds in an Imagined Canoga Park with Lakes and Trees in Place of Streets and Buildings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e026748d58805afbfeceb0cbd3174c4ec05e3ad34a2b0a5821f3ac8252041ca. 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/QM6N22287285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c8b796f89338d4cdf834d56acaccd2a5a353259c2e873a65fd99608821af04. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM6N22287137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4642587ae5e1daa15661d228d6103276f15d291e4429ee654089c0404b5cf9. 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/QM6N22287140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa68801efb6b2d27719b6287c18690f43677743d250ca15b9db5939a59325b8b. 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/USMTD2100626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7bc08d7bb8c9f0783ce8088e65a9d8dcfaabad15a397e30de1e1b87411a72e. 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/QM6N22287292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d41b75c6953b799cc71e340f3e6c5b2421266bd9bbbc825564667c4fa6d2dd. 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/QM6N22287389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71324410fdff3cd08be97bba8ed7a683c795632115398a5d956e8abe23b7ad7. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZNWQ2465875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe4f0bc641f96cb9b8162aed2dea192fb901af1b88ac0d17aadcb5235c7f6b0. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/US4QP0440003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2eb42c0a0cfc6528b6f0f3fe4c634d0e85a6a6507d199ff44a46f59f193fc2d. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/QZTB42438853.