David Hudson may refer to: David Hudson (pioneer) (1761–1836), American businessman, founder of Hudson, Ohio David Hudson (New York politician) (1782–1860), New York politician David J. Hudson (19
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 0xeba2c089846f4a5c0d44370e1cc7c92d3f04b73249ce31d4f1105fdc62edc883. 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/9c48372b-ff7c-4d66-994b-e59e96304cea.json and https://artists.proofprofile.net/proofs/artist/9c48372b-ff7c-4d66-994b-e59e96304cea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hudson, David: Woolunda - 10 Solos for Didgeridoo
Rainbow Serpent: Music for Didgeridoo and Percussion
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 0x89e5a6be833b80d4f882033351b9eec9dcb6144cdefe66c569a468a7a8d2c82c. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/DEA749410696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446ac5589cea02f65950900804725fada9561b82b0dd59f055ed91fea6d7a1f9. 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/USLZJ2169608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd44f65137484b28e627beb62e0921821bca3f97d3861f5075caf080a829b3f. 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/USLZJ2169612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f73e816b404dc9062bf69b256eda52711ff321fd972cbd43878f2d8f3a5233. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QMFMG1432375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9080d5a672115cc850bef1673469f3da9d4ed6ef3ad882b3e5be486f03a8fd08. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USLZJ2021531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3545f7845987bbad1929acff9f6d06fa2f458993038ab2960170736a2fdab3. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USLZJ2021532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb219f7a5f31799347d6b29b30e4be330bcb3a6abc8bd209a321cf2b065ae8e6. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USLZJ2021534.
The Art of the Didjeridu: Selected Pieces 1987-1997
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01a52eb3ec215260782a3324dcea98b8db066b51beb09fac271c21383273211. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/USLZJ2169746.
Bama Muralug: Aboriginal And Torres Strait Traditional Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d6960e9eda6f463c785c10ee204f1dea275bb4b403f6c41d6c102820eafb56. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USLZJ2169631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94cb8ce3f451bba50a5e6ea599e96436a38a21b6554c9a5e93cf92b14c62253. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USLZJ2169635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2653fe4f54907cdd7db5e08694e4cc86675e89b504f9b16091f0de8da29c3722. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USLZJ2169642.
The Legendary Henry Stone Presents: David Hudson, featuring Honey Honey, I Got What You Want
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4f48c2d12a57eae5f20dfe53575c99a75ce325dbf44001a021c9b4403d9325. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/AUID00500157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec28650f549058fde94bb1ee74d8997077031df06f710c33bf6e44291cbaf6a. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/AUID00500159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b549733b54c65a83ba1b863553aa6e2b950e61eeb4dac016dba4bbbf6eef7d. 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/AUAUI0610622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ff609894347a5800e1b061dd6037eb719c44216c8e9eda77a3790b6f4cb67d. 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/AUAUI0610624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfa46b5b80e7e7d4173696b0867f760d3e35048b90d7220b241472e6a34c386. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/AUAUI0610626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f02ab3acf8d9eb2c7c1467a1b15a13889ed157621a7c195b09cbd29b583cba2. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/AUAUI0610627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0506c96b75477bbc3e2dfa1d7d9f817c494d7244da6d15182027873890fd0a70. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USKHW0710013.
Jinna Jinna (Australian Aboriginal Dreamtime Stories)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeadd9327dac4c0013cccea963a2693ca5f442487ae9fee6b08e864cae69cdeb. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QMFMF1567601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5614f88c84fe789fe692a2cc3912864ba176a71909487feaf600970d7dcb9773. 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/QMFMF1567605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8b91497a1c9d34bc8f429f28b825de0af698492a7c33f1248cebb51af7ac5f. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/QMFMF1567606.
10 Landmark Supreme Court Decisions and How They Impact Your Life (Unabridged)
The American Constitution 101 (Unabridged)
Thurgood Marshall - Mr. Civil Rights and the Fight for Racial Justice (Unabridged)
Justice Ruth Bader Ginsburg [First In Her Class (Unabridged)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f97f7a3d56f442b30cafde2881794ad60436ea8c6aefabfe2db8da5fac5bfa. 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/DEA749720136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0261dbb08864cd59d50b02821852dea54472468d533bb1abd925789050de8fa0. 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/DEA749720137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c372b4b6692a1c5dc52d0356268efc4e6c2d29acb78174b700d204cc5589f8. 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/DEA749720138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7e9e1ae7cd1ef0c0830de9a196c315f42c98ef95821b083dce6b5d7b813f52. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEA749720139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8000c45e55748445c70636f51e9942706f216a2fdb9f116e12b4aba26a5312a4. 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/DEA749720140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e234ed411c5a78eb8302aec3c5a942915cff8206addcaf40d5f805ca19e2b9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEA749720141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712a47ab62c9e8e0733001f990313aec1d82f86a86f4d05a1dca4aaea6784645. 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/DEA749720142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d652619502a9ee99db03c326f7ce026865ff5ceff8b6afa54daf77640a0588. 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/DEA749720144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda97bd213c74f7ecd28fc067a18fea2686b6ec24f0e7ab0dbed259c459cef721. 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/DEA749720147.