“Whistle Down the Wind” Original Stage Cast
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 0xeb51d37a75d63d53efc189e83b93b72188b0e661416fe5a5ed8325407436d867. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/328125ee-bb71-4865-884a-4eb18067741a.json and https://artists.proofprofile.net/proofs/artist/328125ee-bb71-4865-884a-4eb18067741a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Whistle Down the Wind (Original Cast Recording)
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 0x82ac074ac99bd44e35063906475800dad2fb4a4a6042402f9866c000751b4e1a. 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/GBALG9900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da5dafee9677efad1d2855c10006c825448439c94d66ec9ab4e5fad318fc5a3. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/GBALG9900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb078b9081d2067023864cfe35aabad0417f4c6a41694c278e3e4050a36b163e8. 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/GBALG9900003.
It Just Doesn't Get Any Better Than This
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35534ea55219025d32e07bd9d50cd10dd13a92156c90cf8b34719824ba12704b. 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/GBALG9900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbbba9569b145eccf35be19ab5511b30ed2c5ef8d0d89d352aa069389be4cbe. 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/GBALG9900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c315472bee83b23abd95c7fc925b404fe45aa6b0191c97e65dd82bc13fa1f6f. 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/GBALG9900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a52b0fb8b3770d2c2c13886bea4928fb40b263eb9716205c82aa2be3e82bcb6. 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/GBALG9900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdee3ad4e38f2625e7a0c9eda4d845d1f3e886c41986be84dd3f94a15fd78840. 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/GBALG9900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800e9102997504914db2a8a750d1b2e70e300103c382019dd4f357f3b8107164. 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/GBALG9900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b23394b5497f931e43efcced03e36b88c8d92c64b98eb914011dda84e084dc. 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/GBALG9900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b241aca223ee08cf546b0111d5e06c5d9db09a9fc711813bc02fab1c55eb5c. 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/GBALG9900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164e8138f515bd4e8c26eaddbf9739a0947096bce7c24a4424ad1ebbc1d61bd0. 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/GBALG9900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca95a3da293b48d73d8e883e33c46224bdc4c0753aa13007a3dd7cb2a243340. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBALG9900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83162b4b0826eb5010f72e3665537ecb355ca645de23c9dcac43719ea0ba506f. 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/GBALG9900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a8c306e3fa63dccb655bc3d2665cf930f1db9c668545a7076dcb3d3002d136. 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/GBALG9900004.
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 0xad2c1e244f31d2e6e2ee23da189b576c3f33753fe9d9295c04843736804d6d22. 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/GBALG9900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499a33e35d4959789ff383d112afd8b22d8a59ca4b210854f9c578c386f9894a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBALG9900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cefd94b270b60e5db5c4ebb1598000bbe2a6ac554eef8b2b292089a4d14c83. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/GBALG9900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d774dc79d13d833575821076def04786e7153aa5ef0b22dce545f5d005cf32. 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/GBALG9900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fa4162d7f2503efa9d6e3e0369094f7e4cbb3cff555b16aa5b83c80773a5f4. 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/GBALG9900018.