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 0x550488510f4d07f37152276f8aac5e09b1d547dbf85b02dc776efb77739f06f2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a280d334-6930-4c47-8665-8af9c795ad7c.json and https://artists.proofprofile.net/proofs/artist/a280d334-6930-4c47-8665-8af9c795ad7c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
HaSulam: Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano)
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): I. Draw Close to Me
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 0xd9e36870f6ef523b25a83ec7e97cab58b5a27e0bb2df1d00c8ef587e89eb7910. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/HKI191833101 — a six-check JSON result.
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): II. You Saved My Soul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bc3589644b11f95c96f970e970480e871460c060f4f58f08159a0f27b871a9. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T05:07:11Z), 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/HKI191833102 — a six-check JSON result.
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): IV. Melody
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c1ae6e2cd8adddb278de30b6accd430bb872a9e1ffdd017c36a06651eca504. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/HKI191833104 — a six-check JSON result.
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): XIV. Consecration
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f7f82c9fdb606e785e2a713c63825f8b073ed24ae775f53a83c9ade4ccbf7c. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/HKI191833115 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e36870f6ef523b25a83ec7e97cab58b5a27e0bb2df1d00c8ef587e89eb7910. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191833101 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bc3589644b11f95c96f970e970480e871460c060f4f58f08159a0f27b871a9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191833102 — a six-check JSON result.
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): III. Have Pity on Your Deeds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ffb4db5ac7a82f60a18cfee9ebd104c50ef806682671a982239dda56481ab9f. 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/HKI191833103 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c1ae6e2cd8adddb278de30b6accd430bb872a9e1ffdd017c36a06651eca504. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/HKI191833104 — a six-check JSON result.
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): Va. The Sons of King's Palace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0820ff6dee63e2cfa035bc8df25e1ec575719deee00ab0b118146c8676da3bc4. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/HKI191833105 — a six-check JSON result.
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): Vb. The Sons of King's Palace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b7f8c18cb4e3c4b1345200d3be146a879843e5f0f4b3009a6bf35e155efd43. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191833106 — a six-check JSON result.
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): VI. Passover Meal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5579e4e7ef77f3c80111bbbb78c594e63905c7babfbb2bc37d5425360cd158. 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/HKI191833107 — a six-check JSON result.
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): VII. The Creator Hides in Secrecy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fb0ca5a49c4224c6faa18be22e8d75edfb382b6f68c263f2395001c6ebdcff. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/HKI191833108 — a six-check JSON result.
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): VIII. March
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d7ce1e6e91d1856e865a78cdbd1dff53e1822079dca4654f3e776d317e2ae2. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/HKI191833109 — a six-check JSON result.
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): IX. Accept Our Prayers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72bbb7ddc01d6c2fd94b8f4065d6495591257d6619e7d087bc0b0dcb536e13e. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/HKI191833110 — a six-check JSON result.
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): X. Like Matter in His Hands
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5117e6cf1f82823a5c6ab3bc9424aead702970ff35a931bd2d97497f353e3534. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191833111 — a six-check JSON result.
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): XI. The Assembly of Sages
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38f4be0fb39d30cfbf5b1df155134531d2e67b2d51f4d1b99f4b081799825ba. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191833112 — a six-check JSON result.
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): XII. David's Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8702f53e82ade5320103c8db1b85596d1e29dc6420ebc8c7853d78115714efa0. 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/HKI191833113 — a six-check JSON result.
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): XIII. To Proclaim in the Morning About Your Mercy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd6defc44420364911a4bf197a7a2a3e638fc1f3c324a744d74d64d3bcff725. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/HKI191833114 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f7f82c9fdb606e785e2a713c63825f8b073ed24ae775f53a83c9ade4ccbf7c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/HKI191833115 — a six-check JSON result.
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): XV. Saint
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7565f3e9a8d8fa4ff22eee6f06c0b8353d8c91df4cbc50397ba2f61123d8aa. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/HKI191833116 — a six-check JSON result.
Melodies of the Upper Worlds (Arr. M. Ayrapetyan for Piano): XVI. Beloved of the Soul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcd37b70b0764083f39b9dd149709f0f6b1f65872e88c237b04273a41087402. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/HKI191833117 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd6defc44420364911a4bf197a7a2a3e638fc1f3c324a744d74d64d3bcff725. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/HKI191833114 — a six-check JSON result.