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 0x917026b23102b4f9f2a9ad0fa7b64388e8669aedf3eb4451f92ed9fe309672ee. Chain 2 (Bitcoin): anchored in block 953978 (2026-06-16T17:11:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c0e6bf4-98d9-4e68-9557-33047e8aa2cc.json and https://artists.proofprofile.net/proofs/artist/2c0e6bf4-98d9-4e68-9557-33047e8aa2cc.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Gregorian Chants for Sleep and Solitude From The Monks of The Abbey
Agnus Dei, Rex Caelorum - Lamb of God, King of Heaven
The Schola Cantorum of St. John XXIII Parish
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 0x2b7060df283fb6f9d315579950e66d5c2869259b5c20e8f216684bf51fbf3612. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437868 — a six-check JSON result.
Benedicamus Domino Deo - Let Us Bless the Lord God
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade640ba7fe5a27c3b5d4153467903731d0ac919458740ca7ab7ce3d089e52e9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437869 — a six-check JSON result.
Amor Caeli Splendidus - Radiant Love of Heaven
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c28d44e874306b046b09e516b7b7a74e741cee8a31a9e5fe46cb63e01247e2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437870 — a six-check JSON result.
Amor et Gloria Dei - Love and Glory of God
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e32be3ee8c4464ed2e4e761c07d9f34eddbcaf5c52f440dd1c5124322f48583. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437871 — a six-check JSON result.
Ad Te Levamus Cordis Nostros - To You, We Lift Up Our Hearts
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36ae207bdc9b44a33d63b5c337ae8d314e18f430d03b41e0f0faf09cea7b627. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437872 — a six-check JSON result.
Ave Amabilis Domine - Hail, Beloved Lord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a59a630aca85a248ba60ff522021d299168cdefe4a21adb5e1ae5e6ec7e5ada. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437873 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a4b616d56a4cb4c54b0d2c43422b0767271027bbad1c47493112bb71573eb7. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437874 — a six-check JSON result.
Adoremus, Rex Omnipotens - Let Us Adore, Almighty King
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bbaf43d1146bce617442c7af09a3c657e8d96e0597a40f2c43a14c1838d0c9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437875 — a six-check JSON result.
Ave Amoris Divini Fons - Hail, Fountain of Divine Love
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989dfb52bf5a9ad980de0868a59bbe19757d20d42dac01d345f1a4300dcfad58. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437876 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea97de2d6c236d390bdaa7d4bc483227dfb1e91e7742a8b25f0061a38831cdde. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437877 — a six-check JSON result.
Amor Sancti Patris - Love of the Holy Father
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b96ea46243921837233bb00d6b1d5100dc52a511bdeb3a2993f1a6e2111eea. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437878 — a six-check JSON result.
Aeterna Veritas Tuam - Your Eternal Truth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e378a953abf1544e85f080f8a3387c2b18a4f5ce0f24e984c146ee8419eb11. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437879 — a six-check JSON result.
Ave Regina Angelorum - Hail, Queen of Angels
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf030d4843ddf0691ba1caeba0e7c74102b6482c9aa0c05a38cdd152ceeb9202. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437881 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7528ce40ad8d76719e936a1f82406926e4a9c8218ae2252c1752b7b2d4af99. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437883 — a six-check JSON result.
Ave Veritas Et Lux - Hail, Truth and Light
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a549807d7dce492e4816b8da42a876b3b24c2530d9ef637d67afb24e1f40864. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437884 — a six-check JSON result.
Adoremus Nomen Domini - Let Us Adore the Name of the Lord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37608ea1401c8d53e63c3259b1258abd71a908c91bd281275d23d6fdd8beebf. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437885 — a six-check JSON result.
Ave Sancta Lux Perennis - Hail, Holy Eternal Light
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89f27c2f72077f62511110f2fd70bd87d016c0d068827b59f6433b8238721bd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437887 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc100a4a920bb0b5be3bcf2cc29ff646ea2c3ac8161b778878449ef6990ef1bb5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437888 — a six-check JSON result.
Adoremus Spiritum Sanctum - Let Us Adore the Holy Spirit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228c273c6ea5aed477b220aa49a419bfb51fbf70a306264796c97186892c2bd7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437889 — a six-check JSON result.
Ad Te Veniamus, Deus - To You We Come, God
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9920e46909bcd503d412fda7208d712dec148cd94c455caf297db58a3619fef3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437891 — a six-check JSON result.
Adoremus Spiritum Omnia - Let Us Adore the Spirit of All
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f89d7f33fd2c01fc8406cfe814f475b363d6bc743a8ebe15135bd2ba88319dc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437892 — a six-check JSON result.
Adoremus Nomen Sanctum - Let Us Adore the Holy Name
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748f68ec8e58dec06a59524cfb12b98e38473c275e936c5b204e7910c6683a73. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAWK52437894 — a six-check JSON result.