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 0x70dfe9425d2cf32044096de9793f16e628106a4beff354725916abf226c99d40. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aca1f9d4-66a4-4daa-bb62-a0ab8920be14.json and https://artists.proofprofile.net/proofs/artist/aca1f9d4-66a4-4daa-bb62-a0ab8920be14.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
King Arthur, Z. 628, First Music: Overture
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 0x84de2652d1e48ba5b2b52e59faad436d71eb4edbde0157dc143c213ceb004296. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1843001 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34006e6ba876a8409f71cd377d20c8331c9069d469ec6f6704ae592cb33b228d. 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/FR50X1843035 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e24e39f65756a6e13a7c119687403748d9869ba642a718c72f160f8bfafd222. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/FR50X1843002 — a six-check JSON result.
King Arthur, Z. 628, Act IV: Soft Musick
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81220aa43897f7a36cb8bff05d230480031857cfdbd3c77a472ef3970cdee8f7. 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/FR50X1843036 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8601eddf51ed16a185f0eb86a2349725bac87bcecf80901d77de9cedcf3b5a73. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/FR50X1843003 — a six-check JSON result.
King Arthur, Z. 628, Act IV: Two Daughters of This Aged Stream
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9470f1117203bcd56d22985de9efba1d0bba70017535bd5fe4fe946e5d0b718f. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/FR50X1843037 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551fe54fee909a4d09f2fbc73ad27f49141a4e428eddbd606f8cf656f2dbd081. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/FR50X1843004 — a six-check JSON result.
King Arthur, Z. 628, Act IV: Passacaglia - How Happy the Lover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d09dcc163c2ba5e32560bce6566d2320761f814242c2883f7968fb1e449ee7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR50X1843038 — a six-check JSON result.
King Arthur, Z. 628, Act I: Woden, First to Thee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee531a9bb0e87dac726e0ef4f98258f02c3be7e03cf02009dd20dbc190cc606. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/FR50X1843005 — a six-check JSON result.
King Arthur, Z. 628, Act IV: In Vain Are Our Graces
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae41e7a5de828cfa3d38112835d419661c5ad777f2b628e9a9e467b7e6c6109e. 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/FR50X1843039 — a six-check JSON result.
King Arthur, Z. 628, Act I: The White Horse Neigh'd Aloud
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc790ac9d8401121175d589b083f0b51f8cf9e273850f3633691c724deaceb92. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/FR50X1843006 — a six-check JSON result.
King Arthur, Z. 628, Act IV: Fourth Act Tune - Trumpet Tune
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5b0134f8bf578db37d9a81522079013afd1ae07e27a8fce34a49f71228347b. 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/FR50X1843040 — a six-check JSON result.
King Arthur, Z. 628, Act I: The Lot Is Cast
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a7af8472230b3c5e771803ee5d8998fcda89fb4c63b160ede530c9b8df7022. 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/FR50X1843007 — a six-check JSON result.
King Arthur, Z. 628, Act V: Ye Blust'ring Brethren
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4507271c54baedeb6f2480e8e7f1f669d026390e19ed805e4c55fdd1aedfc18e. 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/FR50X1843041 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d2640897ae6934b8c986354a8ce1f465c3a7af7c47fe854a6a29920b515118. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FR50X1843008 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033c64963e89205f04c14a028f8fb74a566620eaf103c726a33a1888b622bffd. 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/FR50X1843042 — a six-check JSON result.
King Arthur, Z. 628, Act I: I Call, I Call
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a40109eaf819a4d107a69aa6ec680d7d174c09af52375aa1b7e6a5fc8611a4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1843009 — a six-check JSON result.
King Arthur, Z. 628, Act V: Song Tune - Round Thy Coasts
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560b24e0cb980b18c91b343ce6930897ebb58763a9aec2f7994b1231fa346f79. 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/FR50X1843043 — a six-check JSON result.
King Arthur, Z. 628, Act I: Come If You Dare
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2922562a481ad1af5d0fafd56b65024a0021f5df80c3cba5b812c1e78d819cd. 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/FR50X1843010 — a six-check JSON result.
King Arthur, Z. 628, Act V: For Folded Flocks
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5471dfb7b7f7dbddb036db25098c1d722d57407a2168aac04efd55c6dd55b1d. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FR50X1843044 — a six-check JSON result.
King Arthur, Z. 628, Act I: First Act Tune
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ec5d19a8f2bdbb2a5672b5419e8315ab0227cf469dbad95ede5ce46e9727b4. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/FR50X1843011 — a six-check JSON result.
King Arthur, Z. 628, Act V: Song Tune - Your Hay It Is Mow'd
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8920af18cc59da492944e0da48480fda1d39fefe5b50e667646d50b2194650e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1843045 — a six-check JSON result.
King Arthur, Z. 628, Act II: Hither, This Way (I)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163e705a1ecd6b41059bfa472622f802783fc258c0984d3e51c98ea113227556. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/FR50X1843012 — a six-check JSON result.
King Arthur, Z. 628, Act V: Song tune - Fairest Isle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9893ec444fd6ef63e6be29b3423e9ee792119ecf61fb67522652410db0dc2b19. 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/FR50X1843046 — a six-check JSON result.
King Arthur, Z. 628, Act II: Let Not a Moon-Born Elf
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24df10b1cabd6191e989978af6fc1c5dcb0eb6bee62bb24d5555d96f74eecf4d. 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/FR50X1843013 — a six-check JSON result.
King Arthur, Z. 628, Act V: You Say, 'Tis Love
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bdb0b8b9d8b126dd3b795f4064b9e09f998d07b781762e0824865cd6b783bc1. 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/FR50X1843047 — a six-check JSON result.
King Arthur, Z. 628, Act II: Hither, This Way (II)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d6d1ae07ad0adb0d7f8512f87169fc0fe4ed682dde6f2dd30dcc575004b7e4. 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/FR50X1843014 — a six-check JSON result.
King Arthur, Z. 628, Act V: Trumpet Tune
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee42952c80ce1971f84c33254eafcc1d6fb43a49ca5eef2bcc0caa9af5addd1. 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/FR50X1843048 — a six-check JSON result.
King Arthur, Z. 628, Act II: Come Follow Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb777518774691d06b809ca6c8fd97fc3f620332fafc9c8914284b253b56e0a76. 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/FR50X1843015 — a six-check JSON result.
King Arthur, Z. 628, Act V: Saint George, the Patron of Our Isle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86eb3c7b8b6f1fe19246eed2cd17723dfdcb5da785701bcdd20d65e03e173fd. 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/FR50X1843049 — a six-check JSON result.
King Arthur, Z. 628, Act II: How Blest Are Shepherds
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebc2aa453e6bca20893e4f869c2d20309188f6340f932d8dd763372d7753d50. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1843016 — a six-check JSON result.
King Arthur, Z. 628, Act V: Our Natives Not Alone Appear
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8919d9b734e7a1477fbb3a756fcd458dad700d96f752c25093b2343713c66eb. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1843050 — a six-check JSON result.
King Arthur, Z. 628, Act II: Shepherd, Shepherd, Leave Decoying
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784223b560cc4378ecbdcb63f9b8280d7efac9a27e3336831d34317cd2d5d8cb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR50X1843017 — a six-check JSON result.
King Arthur, Z. 628, Act II: Come, Shepherds, Lead up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ec339192dbd0b22b301c4ea07e5625b4cf9ae346c4c0f1a800e0cac0c30603. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/FR50X1843018 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9951e1ff94d7095754adeced2b426054e14707f422842b7ad4b2686d8f93a14. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1843019 — a six-check JSON result.
King Arthur, Z. 628, Act II: Second Act Tune - Aire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a17cd9f2d9bd1f9e8260d81d3a79200147bce9767b53fb3301b44558b67c85. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/FR50X1843020 — a six-check JSON result.
King Arthur, Z. 628, Act III: What Ho! Thou Genius of This Isle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa998f833adf60dbad0cdcebd8183e620c41e584478f5487da2da4a30eb394f54. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/FR50X1843022 — a six-check JSON result.
King Arthur, Z. 628, Act III: What Power Art Thou
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d24b30a9b9e9ad39474972b75a9c22fb01d7dbb9526c68892c8d5e6bb230bb6. 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/FR50X1843023 — a six-check JSON result.
King Arthur, Z. 628, Act III: Thou Doting Fool
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50adcb381e39531cbf43be60974944590e22d02b414044abcfabfa4ac5e0e8cc. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1843024 — a six-check JSON result.
King Arthur, Z. 628, Act III: Great Love, I Know Thee Now
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc607f4a419402a05dd2715fb96b550528e1525f299150d1191bf9bca622fe290. 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/FR50X1843025 — a six-check JSON result.
King Arthur, Z. 628, Act III: No Part of My Dominion Shall Be Waste
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8ee06e5e07837bcddb618f34bc0837d56fa1c0f4d57f6d7f4b05a2ff294116. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/FR50X1843026 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379abcb335d49fbb8642489bcc4e14ab6fa6bf52af25504044d072ee63faec71. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/FR50X1843027 — a six-check JSON result.
King Arthur, Z. 628, Act III: See We Assemble Thy Tevels to Hold
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd492bef3f06311290b07e34a7d9ce01e65ef1de94a0d5a42e9fd819748912b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1843028 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a29d70eed0d7e00f5a0b154134c03c5e4aed36c0d290d3be984f9d0602608f. 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/FR50X1843029 — a six-check JSON result.
King Arthur, Z. 628, Act III: 'Tis I That Have Warm'd Ye
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89f38b91b1c2bfed55bff1a51926e1358883645d2a1ba895d448e2de7105d4b. 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/FR50X1843030 — a six-check JSON result.
King Arthur, Z. 628, Act III: Sound a Parley
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0022529c64581b06a472fe06518043ffa89b23ed83a2bb2205bafb8e1d513e90. 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/FR50X1843031 — a six-check JSON result.
King Arthur, Z. 628, Act III: 'Tis Love That Has Warm'd Us
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9400ce547e25b91012609e17e6cf3d8db1990635c98324c46454c4d653acfd90. 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/FR50X1843032 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa281c0bf70143196472c8d54883a628b1ac45c4173bfc65468db41b0bbeef043. 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/FR50X1843033 — a six-check JSON result.
King Arthur, Z. 628, Act III: Third Act Tune - Hornpipe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679cf76074c2f39a7d97c773e129ddaa65303c36e61fd0b4a8fe53629e0df58f. 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/FR50X1843034 — a six-check JSON result.
Missa pro Defunctis in E-Flat Major, HocJ A1.3: II. Kyrie, 2. Christe eleison
Jommelli: Missa pro Defunctis, Libera me & Miserere
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7788bf23edc474e8c193b640499f9ece209750e4cb21cff29c90aab67480886. 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/BEE022007603 — a six-check JSON result.
Libera me in C Minor, HocJ E.2: III. Dum veneris iudicare
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde31919eb26189e655505a78a41729d923db71bd16a1eb90fc9df574ddc1daa8. 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/BEE022007625 — a six-check JSON result.
Ich fahre auf zu meinem Vater, TWV 1:825: I. Chorus "Ich fahre auf zu meinem Vater"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42d9cadf46ddebbea4a05465b6eff1bd989659c6bed543e71d93a69d9e124b4. 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/FR50X2203210 — a six-check JSON result.
Missa pro Defunctis in E-Flat Major, HocJ A1.3: III. Sequentia, 2. Salva me, fons pietatis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8da14bce1a32ec98ea6c6858b94e38a55e77b8386ad8437d644bab893bce8b. 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/BEE022007606 — a six-check JSON result.
Libera me in C Minor, HocJ E.2: VII. Dum veneris iudicare
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b59d4cf16c13fd6c025947a91cf3db436e0b91cd562dee45a893a4fa1c0bd6. 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/BEE022007629 — a six-check JSON result.
Aus der Tiefen rufe ich, Herr, zu dir in G Minor, BWV 131: II. Arioso & Chorale "So du willst, Herr, Sünde zurechnen"
Bach: Actus Tragicus (Cantatas BWV 106, 150, 131, 12)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b20029a27a8e85564cce13f89f7a3d1d2223eaeadd6abaf05204b5a97d4911. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1625817 — a six-check JSON result.
Aus der Tiefen rufe ich, Herr, zu dir in G Minor, BWV 131: IV. Aria & Chorale "Meine Seele wartet auf den Herrn"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670bd198db81e181777e621bdc2b1654c999b1612427ebeebf08f63c72c018d7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1625819 — a six-check JSON result.
Christ lag in Todesbanden, BWV 4: VI. Hie ist das rechte Osterlamm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb94f33079eef956afafc58209deffb0e2e32ecbea09fb0d34823beb14789aeb. 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/BER181840111 — a six-check JSON result.
Ich fahre auf zu meinem Vater, TWV 1:825: VI. Recitative "Ja doch getrost, mein Herz!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68763620c01a5358b4da0b5df93e1e36a3e359b25f70a06fee6ba4e10149e4ea. 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/FR50X2203215 — a six-check JSON result.
Auf Christi Himmelfahrt allein, BWV 128: III. Aria & Recitative "Auf, auf, mit hellem Schall"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087e27435ac0838e200feef41b181ecf98165a13850a2d8047fa79ea01e2b6e5. 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/FR50X2203220 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a231e6ae1c6dba45540a5ba51cafd4c62f470c3155e0f0342b7b5dea22d6a1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER181840105 — a six-check JSON result.
Magnificat in D Major, BWV 243: V. Aria "Quia fecit mihi magna"
Bach: Magnificat - Handel: Dixit Dominus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd7cdb1b3a23272d8807ec7cb0818a19b6153faf6af2cbd5d9d72ed81069047. 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/FR50X1737005 — a six-check JSON result.
Dixit Dominus, HWV 232: VI. Chorus "Dominus a dextris tuis"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb462dfadc402d9a9320c7b785f0f4f4bf33e0b40bd4ec07ce35a8de89eedde4f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR50X1737018 — a six-check JSON result.
Weinen, Klagen, Sorgen, Zagen in G Minor, BWV 12: V. Aria "Ich folge Christo nach"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2356946edebbc23f5c71390fe794dc3d7bb0d4880fa56f954b607e42f99d2e4a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1625825 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2356946edebbc23f5c71390fe794dc3d7bb0d4880fa56f954b607e42f99d2e4a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FR50X1625825 — a six-check JSON result.
Gott hilf mir, denn das Wasser geht mir bis an die Seele, BuxWV 34: II. Gott hilf Mir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe525a14e69c8e13699c08912052d765b27a0a3bf981119119acc49be9f742046. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X1728702 — a six-check JSON result.
Jesu, meine Freude, BuxWV 60: IV. Trotz dem alten Drachen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4106a2d334e2bacf13301550b07ba4a4cd72892259aea1fec742c3521d5ff578. 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/FR50X1728712 — a six-check JSON result.
Jesu, meine Freude, BuxWV 60: V. Weg mit allen Schätzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c6feb67f0012693cc76f5058cea46a1b1662c27f36b915f38205824b7648ce. 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/FR50X1728713 — a six-check JSON result.