Walter Roland Dickerson (April 16, 1928 – May 15, 2008) was an American jazz vibraphone player, most associated with the post-bop idiom. Biography Born in Philadelphia, Pennsylvania, United States,
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 0x3078ada67382bff165421fdd1045b07338b7141163138f94795a2253b7f44788. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/316dfcf0-b2da-463f-9909-571fc0a38fbf.json and https://artists.proofprofile.net/proofs/artist/316dfcf0-b2da-463f-9909-571fc0a38fbf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Remastered Hits (All Tracks Remastered 2015)
This Is Walt Dickerson! (Remastered 2015)
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 0x17a5643b51acd527c903046dd0aad44ce935ead49a2f1992154671f52f7b2135. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR6V81341060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63bfe532968c0db1e4d90d2cb4674f6039dcd4bbda85cee25aeda8421f4ae43. 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/ES7710740710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07d865f9c494507a8a950fc0b0ab86beaa5e8ac81c691108e0bc225f2e6e285. 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/DKARS8903101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945a90c69483a24b661d256a6e98a84b2b9b40961fe728f5ca0a2cd3d040d16c. 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/DKARS8903102.
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 0xe5b6f131261d54c02e8e7b667f1c812d5104d3655bf0cc9bb67ea289d66fb2e5. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/DKARS8801501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2fb6f9bc270f12937f9aa8f9f303c2ca5cb268005d6e0d6106472bfb9330604. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DKARS8801503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd117edee81b28645ea14dd07f1661dcf2935233f0204580b445cc5bd6a082044. 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/DKARS8801502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0906f07fbdb7742c9a0791f2239cb72f4bd3511abd04840fe467234f87c5ef8. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DKARS8801504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddfd36ec0aee536e6a639d1d041c64bfecd052bc83ddbe35b40559ccd6eb599. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DKARS8801505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1656a5159ceb63069b38c24533f31c46af419102c7fac079552abb6672bedb54. 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/USGR19905075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ad398198e220ccaead379359c930134064bf90da95599a5c71eaaccbd5d67c8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USGR19905076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebd38991ff61a78a658f0e325dfdfc14a4145a21660a46fd93470065d54f7e2. 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/USGR19905077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891f16862969aa1284881ed7279a2c7bd46772e32ca749bad6cb535a6b30d404. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USGR19905078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772d00be9df0447d0049e55107be5932d55716a4bf633969c91394d39c0f3053. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USGR19905080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51195246ecaa2bb1a6c813da270de7e1b4b9c7b6ffbb37355ccd80d8e7496da. 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/USGR19905074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca65fc7184afd74463d5a5ad2a6e7aac83981060fa74e043bc31ea9c06f429bb. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/USGR19905079.
Haverford College, Jan. 25th, 1980 (Solo Rhodes Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8495190a1fd38f60475dc65c126fd6a17bc18948b80eb95e580ba84b118ccc9. 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/USA2B2317553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3420fdb49dda98f8f1ba77b517aba50bb8685f8f57e74f16990bed083bcc23e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USA2B2317554.
Space Is The Place / Over The Rainbow - Medley
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066490b66426cc0077785b02f3732ac0da7f18430859d7d13d5ca20627aed117. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USA2B2317557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb752016133c3f222a341f671db1c4c9e5bdbcfc875e358affd686e0cfcc5822. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USA2B2317558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78805016090be9b7eb87296404fe0563b5aae0eec36f8d706440489f8331fb80. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2B2317559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6944d6447228edea5b0f208adc82404c77ba6aa5a853f0f1e1f6a1cc43c049bc. 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/USA2B2317560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38fe58321320f8273bd41ef843a325e86fe0dd0e3e051c4ee2d7690855c1034. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USA2B2317561.