Spark commonly refers to: Spark (fire), a small glowing particle or ember Electric spark, a form of electrical discharge Spark may also refer to: People Spark (surname) Jessica Morgan (born 199
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 0x3c135c57cd63e1a495eed9d71094a45c4bb10f416be5d0d142f4a9a9dcfe4ef0. 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/0b495bdd-48c2-40a4-a512-5bcb480744d4.json and https://artists.proofprofile.net/proofs/artist/0b495bdd-48c2-40a4-a512-5bcb480744d4.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 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 0x8ff1ef85161e6cde4147a2332f7797c3e645109c223f8971f2784c5219349de0. 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/DES381809000.
Rigaudon (From "Le Tombeau de Couperin")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde479d97aff76c54743e29882d409376b8f29db4909b1081789b618f9e4af085. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES381809001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778d8506e28792e5d7269eeb1cbb037c34fc2feade1d4e751bb8601656215ef7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DES381809003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43516316cb994467dd12ceb062720839ef1eb142f3a4bd14d25c154b15b6b459. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DES381809005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8898302a940237fc665c909d50b55de2168d070ffe877a4f8abcf0d25bd3554a. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DES381809015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c7d8cb9e55f6be32ab1a68cc087c3e46b0fcce2f088080ca23c9de8e0b519d. 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/DES381809016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0af5f198249f8645d7307b80eee31629b4265360824a77f0b7656d53f6d7e45. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DES382358001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24319dfc2d18b5c2bc863ffa60254a5d9926d64ab081ae84f2fa72a7ed1d0fda. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/DES382358003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a554f3eeefd21dfc393026f28d9f18d91e04dca16376be89a5d2d258744361c. 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/DEUM71201925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0c15b67eb5a1d7e60399e87b5ae3a3bd0cbdfdef9e017af3632b55780ab9c4. 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/DES382208001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c38f0220268d9687d0f724e96374bdb3c8e19307f80f6d29b7d3ef4ab91fbf0. 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/DES382208002.
Sinfonia - Ouverture from "Giustino", RV 717
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf844f94ba1a1a5e70b4a1f6b14262d41346745eccbbf1ac165de4d62bd5edf54. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DES382208003.
Vedrò con mio diletto - From "Giustino", RV 717
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129e9b7a950c0e37cb98ebe514a8114e29f3d407955be2ef6718ffd718f5423f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DES382208004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c7c88b403c9248e6c78c47cbb63e6b2996de4679fb364ff4591ba8c41e05d6. 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/DES382208005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635fa0c7baf2bd5ac995311ae3b2a4948c2738a03040824ab9b36e2d691e808e. 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/DES382208006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d8307efa44509d1cfcab6c522cac7fbc2734abcfd585b8c2e29612781c56bc. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DES382208007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c78c43b81b85aea1ddfb0792e02b8bb160cb7658adb042f3edfab42afac5895. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DES382208008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2d98a293c86b2d99df45d5ee099b0cee1adfecae82d34ffbaa8d4845388e66. 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/DES382208009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52a482e9a3e0aa7b964d5c3c3eea8e74a64d35553afd055575365f5a667093d. 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/DES382208010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7ba9da909e981800974939e34db373c405c43eaaea69a80a7c231da61a5324. 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/DES382208015.
Still In My Arms: Compiled by Bayu and Moopie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9817ea65f7c96acb274bf56bbed87d8ee64ffcad2815062a0130e150df4a0ade. 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/DECY52000581.
New & Smooth - Moderne Klassik für die Seele
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34538d3815ab3e26f39d5a7bf7e15e110578a4047c64d0e3c432359a1384d8e8. 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/DEUM71201928.