David Wilcox may refer to: David Wilcox (Canadian musician) (born 1949), Canadian rock musician David Wilcox (American musician) (born 1958), American folk musician David Wilcox (singer), member of ba
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 0x252130f8c07de4ef0c79c64403b79ddcd931d7edf4b99b08fa9a08a884f7cedf. 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/bdd3f8c5-e496-4161-b35c-23af2bbbaf24.json and https://artists.proofprofile.net/proofs/artist/bdd3f8c5-e496-4161-b35c-23af2bbbaf24.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 0xedefeb6498049b58e0f332dadd5b555e014d8b4f8612f3a7373d52440bf36ea6. 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/CAE158300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9703cb607431ce1a38bcbc63693894acb9102f9fa71ccd7f93fa4294fe023e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CAE158300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82776deee96dfcc412948ef7673ccbbfa2192b7309cb063848f1fdcbcf398904. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/CAE158300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b445024cd9ca54c0469deef977b4078bf9434f157ee8ab3f7b565550bc3a2e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CAE158300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59abec8c43e0ec43cf6fa673f7aaed451a57b40b09105cf4637ffdfafaf33d03. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/CAE158300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93882832679bf5bd9fb2841ac8b6ad639a4de1c2897c1d50f4602b349afb5d4b. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:30:31Z), 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/CAE158400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b614c9aebe9d4933144a532d8b76bbfeaa0801325bc5e8e1edc05bd85c0030c. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/CAE158500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1529a9672a3c6dcb89011bb24b2e12f1186c4d152de82ead954c1a3a8f06d623. 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/CAE158300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877cd984647ae74dbbbfc38c79ce3838ac8cfa687cb13292a36c1966f8bd1b0a. 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/CAE158300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfc4be8a3245ee1af34dd69bef60cd165d0a2b6a62a10a7af1fe18732a0fd31. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CAE158400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12decec3e8964faaf4744fd73e4a148f4387c7215e74e168dae05945c1bc3e3c. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/CAE158300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664772e52a5f61c474a3725ae970c2321dc5df1b86fb748dbf1b9fc5b3f8fa5e. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/CAE158500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fec063ad32797be5e19c819ce95bd8567e75fd43bdacf5f5ded4ee853e0cd07. 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/CAE158400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e46257849c747b2272191ff8563f8237c4386ca0851d85fb2b059180dee3b9. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CAE158300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778a926dcfca6e96e8a8e3e0b76c0c74f5766c569bc4e5a051e66a9b972fb010. 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/CAE158300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfc4be8a3245ee1af34dd69bef60cd165d0a2b6a62a10a7af1fe18732a0fd31. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:23:31Z), 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/CAE158400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fd2d7153ecb8d33b08984dab8c16e184fe13db5987da636e0ed445daaabbf9. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:16:35Z), 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/CAE158300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664772e52a5f61c474a3725ae970c2321dc5df1b86fb748dbf1b9fc5b3f8fa5e. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/CAE158500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93882832679bf5bd9fb2841ac8b6ad639a4de1c2897c1d50f4602b349afb5d4b. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/CAE158400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12decec3e8964faaf4744fd73e4a148f4387c7215e74e168dae05945c1bc3e3c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:36:08Z), 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/CAE158300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84f72596c8f00bf76ebe54e31874996c3e7f28f74921099daa9b11a04070e69. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/CAE158900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62f5d73fa909dbb61b5fd668f0eeafae9756f77511f046be62418b491b02ec1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CAE158700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ae067d95e4cf1ef23d40a6174a219e14f1941956f22949ff367d4b5e559528. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CAE159700162.
50th Anniversary Live at the Toronto Jazz Festival
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0c2d9877b2cd79a87b25f9758bd4f59759d4602db5e12b4ac42d003a595564. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CAOKE2000004.