"Blue in Green" is the third piece on Miles Davis' 1959 album Kind of Blue. One of two ballads on the recording (the other being "Flamenco Sketches"), it is the only piece on the album that does not f
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 0xdf431a1b730e0cac2ced30b1f4c1e949010c092f9c97c8e4a543d39cc803a9a5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c036262-7f1e-40fb-8798-b1096011daaf.json and https://artists.proofprofile.net/proofs/artist/9c036262-7f1e-40fb-8798-b1096011daaf.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 0xb70b0797c23f2833c563e514abba3e59a00b29269120f8f9340cbbfa645a49f3. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:37:06Z), 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/USEAX1100166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283ec62f7dc3517174895196a416a77f877f31ae2b996c7142c0f80a74efa39c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USEAX1100167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8696032619a969f9cfda7b1f5368d4b2ea44c5423add536abef386cf3f7127. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USEAX1100169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7d61390ddd055ffc5e1208d5fcc4f09409daba7f93645b8101f5b13b272e73. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USEAX1100170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a30e3424b21a95279d5aa5a2ba9670a08fb2712964ffcccc5e66983f6e7835. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USEAX1502119.
Masquerade / The Night Watch - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9225ade5700307b1edeafdadbfd440a63004391020e59c1c6600ec2f05e759. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USEAX1502121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaadf2ad3d7c586ecc77abae25cea5b32659ddb5695523abb35d8d1ec18604a3. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:12:12Z), 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/USEAX1502124.
Get Back (To Soulful Music) - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ceb2154462074788959d55e8aa4403223b2f64f080801381dfcea8219ad43b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USEAX1502126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d7d616e0fa9cbc34f39ec1ee3116e88242b889166a6145a055952744549d118. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USEAX1502127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c67902334c6e50bd8d744fb9fb82d37e0d70428de8c4ef9581739cbc56954d5. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USEAX2000162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdcac5134ca7f36c51074df7ab6a2184b08dd0d5eafee95566770b407a97fbc6. 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/USEAX1201067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc545434cf64f7b22da93928bb9f7adaa6b35b53589258c07753577e76b62805b. 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/USEAX1200760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa146a3a9da1682f0731c4e407b73f1eabe6c446048739ca87e912f206591bbce. 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/USEAX1402093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ac276e8c7e3ef14f0ef541deefbce4326a42e3d5485eab855599485c257c5c. 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/USEAX1301327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec1d5543d98fb5b62d0e97d8be96bf62bc98052524f613c10c222d396a1115a. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USEAX1401610.
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 0x04253968f5df959b6caa42918b544f0d0ec286607d99d01cf021f5548b804bb4. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USEAX1200791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa9c761009650a9383b760471f1f97bf4941b3149f6567496d2f5597bdd7b64. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USEAX1502120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ddeab40e6f5902972d39ed113e167b9421db30ef3970dbdf93f743727a07a7. 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/USEAX1100161.