Steven Edward Stucky (November 7, 1949 − February 14, 2016) was a Pulitzer Prize-winning American composer. 300px|thumb|The Dallas Symphony Orchestra presenting the premiere of Steven Stucky's oratori
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 0x3991a145ce24132abbe746d4d8bd06bb041f3f19da0ce8ed4d73da7edd9e762b. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc260f71-fdfa-405a-9043-814ca9e802f5.json and https://artists.proofprofile.net/proofs/artist/fc260f71-fdfa-405a-9043-814ca9e802f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Beyond All Mortal Dreams – American A Cappella Choral Works
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 0xf6a7d6130bc0b9d01ddee325a96d69ddd9869608a8330db78d80a2d33e203955. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBAJY1183201.
3 New Motets "in memoriam Thomas Tallis" (2005): I. O admirabile commercium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a601a4b81b6be1c929801952811b5dfad3c55fd84b4706513d4b5eb559cee62. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBAJY1183202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434868e65c7fabda36c88baec7c30b915da77d8cb0976ccd13643324af573f31. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBAJY1183209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe75787dfb12c496be902ebb12c1c293ec9268a27b1270a7c7c55e0c9d80c47a. 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/GBAJY1183212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a3338169cd8cf8e793b865f5b17faaefbe34939e86e3283b4b94439280438e. 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/GBAJY1183213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebbe0be6954fe6686f1c7d5805bb316ca304ec0bcb8f7b155598b0f8ee80297. 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/GBAJY1183214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303bf8ff1a2ce6890fec5622938a17cc0ab92a379c1897e1ed19d7883b6ea394. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBAJY1183215.
To Be Certain of the Dawn (2005): Hymn to the Eternal Flame
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e1ce448736de20f976c7308e13ff731823bf6b19606c7fd57cb3156c7cf9ea. 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/GBAJY1183216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafadd4b40eaaa7624aaf62c922425b4166e37ca860cd29c2b1e162e315890ca6. 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/GBAJY1183219.