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 0xcbddb1b3c385db08caca8cb2710b2cef5d5899985c5d3755a5b3bc2e89cb5511. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf6ad927-e2ff-4edb-9520-afa1973ae61e.json and https://artists.proofprofile.net/proofs/artist/bf6ad927-e2ff-4edb-9520-afa1973ae61e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Creation, Hob. XXI:2, Pt. 2: No. 15, On Mighty Wings
Haydn: The Creation, Hob. XXI:2 (Sung in English)
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 0x509c0ed31c148e2d4b6ba0e6ef68e8e9f452bd1c945ca278e681c70f5b486163. 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/USTE10716298.
The Creation, Hob. XXI:2, Pt. 2: No. 18, In Fairest Raiment - No. 19, The Lord Is Great
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2aeacb45de2578686622e4f2aa544912a8310ea7f1fb527d04a1f7b01557711. 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/USTE10719298.
The Creation, Hob. XXI:2, Pt. 2: No. 21, Straight Opening Her Fertile Womb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ea371a1af02f7932b076d0532dcfe4a93feb2b30ef558094bed49454b2f7dd. 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/USTE10721298.
The Creation, Hob. XXI:2, Pt. 2: No. 22, Now Shines the Brightest Glory
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee38dcc629ed3a99ba9d50527969f08f43e8a5b2a236ae46bc67c2657431492. 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/USTE10722298.
The Creation, Hob. XXI:2, Pt. 2: No. 23, And God Created Man
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554988699457b9d3d980443ed82215af75b44634ca88a6d897cd882c199cb9b0. 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/USTE10723298.
The Creation, Hob. XXI:2, Pt. 3: No. 30, By Thee with Grace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b26c2e451a3ee7dc6f3f3068ae60903eec077c846ddfa19edb600055b7dfd0. 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/USTE10728298.
The Creation, Hob. XXI:2, Pt. 3: No. 34, Sing to God
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326275225a1caed3d6763e2c72b9a89f37142c71ce13ffba6ee79ed40ded2e67. 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/USTE10732298.
The Creation, Hob. XXI:2, Pt. 1: No. 11, And God Said, "Let There Be Lights"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9393003b1ddc24e69ac8d22ceb3c17d145e3c04c359c3ab3a9651c64c05f071. 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/USTE10712298.
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
The Creation, Hob. XXI:2, Pt. 1: No. 12, In Shining Splendor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2b129e109447dae7ec06a8005426489fe860cf5d2fc9ac28705a7150ec7f34. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USTE10713298.
The Creation, Hob. XXI:2, Pt. 2: No. 16, And God Created Great Whales
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2450724606eccbbb5533e554818e08353b96c4a7487f127e8ddd5fd9f3cd28. 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/USTE10717298.
The Creation, Hob. XXI:2, Pt. 2: No. 24, In Native Worth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f77596e5c1a664c5dabc534bd4959d27dfb41374102b743fdf7e5530e193afa. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USTE10724298.
The Creation, Hob. XXI:2, Pt. 2: No. 26, Fulfilled at Last the Glorious Work - No. 27, From Thee, O Lord - No. 28, Fulfilled at Last the Glorious Work
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77d3ca20acbcce4e7224cc2e985dab34c567526563fc2a94dd10662d4241e36. 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/USTE10726298.
The Creation, Hob. XXI:2, Pt. 3: No. 29, In Rosy Mantle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07eed597cb54920c12bbf7dea8301667e711eb8ec729fb90a6d3d756b4adb95f. 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/USTE10727298.