William Clayson (1840–1887) was a Latter-day Saint hymnwriter who wrote the music of "The Day Dawn is Breaking"; "Nearer, Dear Savior, to Thee"; "Hope of Israel"; "O Thou Rock of Our Salvation"; "The
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 0xb51b62879dcb9a8d391d3f7f8e0045b3da3b35ebb78b4ca8f9b7efb8f0540086. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08f64f4e-78ca-4338-868e-bd18e5d8cbcf.json and https://artists.proofprofile.net/proofs/artist/08f64f4e-78ca-4338-868e-bd18e5d8cbcf.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 0x80d44ca78d0441332caad4eca9b4cbe43c02cf1d4402a775a8abb37f78190d23. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US23M1100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec2ac1f4a4ca7fc2621a7b01fa712cfb22b0c6aa2b7bc96cf9c28ba82373f92. 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/US23M1100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105feed5f9953438462407860c6dd2cceb79156e45ede56b187c82ab75e127cc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US23M1100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b7e0d520cef7cb3359cea008b92cb9426ee99c5efadc77c258fb94c8951fdf. 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/US23M1100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1ceaca3cf0564e9a0365cd3e09a8fb6fb8306725fb473198aa62f70fcaced7. 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/US23M1100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec33dcf98134cb03b1ca9a6dfe509db9d1fed9b90fb1ca78b5a0fa7b8a793d11. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US23M1100050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9b76e453f3a4885536a07efe5e09859205c59d78167ea31f09986d6690b5b4. 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/US23M1100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b9a2c29c7ae09bf090ceedc87958ec3a69f39a99a9e6042de3b9e08f4dd6d8. 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/US23M1100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e3fc71f7713984848aa0f511fd5550dd5b41d25853cce50ab927a87ce9458a. 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/US23M1100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f6d7a76d8ce06aefa2800fb1fcf3abc1d137499c768ba80c455f92e121d212. 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/US23M1100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e446403a96f4f45ced10a1b49083111a6cbd10f5c07716837469763e2ccd10. 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/US23M1100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3069fe638ced8a49833170d02f6e2edcb3bcff58a2ebbc2f13b53738e626426b. 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/US23M1100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bdcb241cbec4a2fd35c71a2937eee85678f144bf00306793b8275d2674b8d8. 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/US23M1100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd6e15919c7d359f5aeb09e359fa539bf7adf9dd98383623506858d0096c4d8. 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/US23M1100058.
I'll Go Where You Want Me to Go (Arr. M.D. Nielsen for Men's Choir, Cello & Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601557b741662c564715c3567ff98ae3e00a492ad20023c6ffcb0d9055b346a2. 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/QMRB31300058.
Choose the Right (Arr. R. Hall for Men's Choir & Organ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c24dcf995275bb512630558878168fbda13c99f40eab65b9a9aecd80564bf35. 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/QMRB31300059.
Press Forward Saints (Arr. M.D. Nielsen for Men's Choir & Chamber Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6524bdc7d06a5fb14e2c5b4ae31f8883e3fa49f1a9ce346c7abfdd5ac664bb80. 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/QMRB31300060.
Come, Lord Jesus (Arr. D. McDavitt for Men's Choir & Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3ff25f27ae8d1b07169be048155a71b150b90ded73aba4c09fd928a5b9d1ec. 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/QMRB31300067.
I Love the Lord (Arr. R. Staheli for Men's Choir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa17fb536f0c317c89ce7381862a5561290e639ec91f74867c3c8f4448c86bf7. 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/QMRB31300061.
Come, Thou Fount of Every Blessing (Arr. D. McDavitt for Men's Choir & Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e3975555ffea8485b88fb9b69fd908eded216e2fbb508b41832cdb0a41962a. 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/QMRB31300063.
Called to Serve (Arr. D. Zabriskie for Men's Choir & Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408b09bb4a365e9529735e3abfffbece7b9d94f8e3a924bd7ee95da08f9d91f4. 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/QMRB31300066.
The Iron Rod (Arr. R. Staheli for Men's Choir & Organ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1145be1248bcac6e131c438a9168a32d975241955c7f2cd2cea53659bfbfc03. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QMRB31300069.
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
Sweet Is the Work: Peaceful Missionary Hymns On Flute and Harp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb7ed2fc0a18dd888bba96ad3ef63792d29e116c30c3419af6d8f5549fefafa. 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/USHM91353294.