Arrhythmias, also known as cardiac arrhythmias, are irregularities in the heartbeat, including when it is too fast or too slow. Essentially, this is anything but normal sinus rhythm. A resting heart r
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 0x6162a601f851dbeec602a8098ba23d2bbc47b3fbfdc7330115e7754f2d4b3d36. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4c759e9-ad15-4635-9af3-a52f0053a995.json and https://artists.proofprofile.net/proofs/artist/b4c759e9-ad15-4635-9af3-a52f0053a995.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Escarnio e Maldizer - En Directo XX Aniversario
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 0x4eb7e2ca0d1dc4fa549ed45da97730001862d0415c30b5786eaeb34fc164687a. 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/QM4TW2466835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7c1bb16b43dd2dfb318cb27d0a6317042cf736d5a737719c8deab303f6c170. 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/QM4TW2466836.
A Mocidade Activa - En Directo XX Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e111e209e80275e6e186111203a27425da7183064cb21a359fd95882a2e1bb. 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/QM4TW2466837.
Ate o Abrente - En Directo XX Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa47ab002755480044444a56909bd0af4c4f8d25ead80df36b5fc7381005977. 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/QM4TW2466838.
Linguas Ceives - En Directo XX Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1201ef3e3eb696abe184d6d537bb238b3ba44c809aa4df0d5f48b8b0ff8b44b6. 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/QM4TW2466839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514bcc2b2817f0c6de46ccfbf2aa64c43cd18a6a99b5229b502f8ccb98a0a0f8. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QM4TW2466840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5327ec20d216996643ca9f9b1b500bd0ec60af2d0d6c7ff9a0ab3c53a0bdc88a. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2466841.
Ate o Abrente + Quen o Diría? - En Directo XX Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c97c4368091406f33cf4cab7499fad3df9825d2c9386b4ba5c851097699d0fd. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QM4TW2466842.
Seguimos en Pé! - En Directo XX Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92767d34f73df42a43982addb7aa87d1884a379ba58772d8b4759ee620e0cd1. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/QM4TW2466843.
Pobo de Artistas - En Directo XX Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb679d9624aa90afd672b449a065e36fc694b811dbf751467eb0a5842c0c7ee64. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/QM4TW2466844.
Sobran as Palabras - En Directo XX Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf06dea2aac56624bc4da4696faf9a07fc649835026fc60b3f5797093e44b5b. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2466845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a40dfdcd2029b90e913180f11252f6771b9a685edff7d0845e42e086a0132de. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2466846.
Eterno Festival - En Directo XX Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9cf9ae534e0f1903fde8c65e14c7ec75fa904bf53fa6a3aa506e5791a19994. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2466847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7050e37d9a161ba9d4f9d8e6c44367abeb176a9c709dd4f5a9c6da46ebdd29. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2466848.
Algo Ke Romper + Fragasaurus Rex - En Directo XX Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd190172f154413f9a20992bb0baed337853b3cdcc15cd47a11cedb862ec49052. 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/QM4TW2466849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fab4e6e5abd227b4f72e3a2be4879921161c80f4e1624a67ed5c69a34ba6a3. 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/QM4TW2466850.
En Compostela - En Directo XX Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66157f8798c1ed4389cff5b195b8890416a2bcdab0a00ed6c13c631fa875344. 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/QM4TW2466851.
A Vida Pirata - En Directo XX Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca32efd23a516db3d8e3dce6cd11e67c072385986fbbe43dbd75d8433c3e7b4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2466852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b4e720ef9ef2ade53850fc8b44f4219c25f942f4d3abe156b263c75e61bf7d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2466853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbd831040628a7d5e5dc8b3a41a1b7a88b82578c04c0ded95a3b421df16e2a1. 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/QM4TW2466854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7771ec10d253441b0d7fe2942abf1d32591a7534e8f8ebdc759cae3ac5e4ce. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES31E2102506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349c5d48372972e48dc9945c3a856c390cf15d7e6f074572276489e630365464. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES31E2200329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57526e2caed3e4cf3d0d697290d9838ed64af26a67ad95d8fd6ad2918856b88a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES31E2200269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51049b1b0e70aca520384811ed70c30c1539ff568b6cd469698cc908973997e. 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/ES31E2200268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2b8b487f1b00fe84683b9dd36b28ce174026f1c3951bafa89b54e7c5229ff2. 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/ES31E2200327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ca9f76774d309b5d9b3993279b7274a39ae72492ed36f295f9dc12c0f50f24. 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/ES31E2200336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e8a45acc65c6470631d9f6d256e335de08c8d80598babdda973e152c1ed243. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES31E2200342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa109c9e9386d31e321ac244c1573e5f1e502c9b73d795c18f5d7a9fe1947e9e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91999442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe595643575bb4becf55b459d1e3b02521af465d12b87647f8ff581fcb494df1. 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/QMFME1588763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f1f637376c8f942352ba714cc07ba9d1028a6e5bbc32ae04406c1308505b08. 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/QMFME1588764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91436b30640c8067c4b09017853670e9e79176664778cd8466b4e71b97ca763. 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/QMFME1588766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1285d1604c9ef2cc7397af0d000105fc496e94e55ea63c2381a38681f5d524f. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME1588769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20713fdb3a146fba9f62f5e81a9b54fad5df3e43bb0f748089eb8863d97714b1. 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/QM4TX1841847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195a70ad3ab565ddbfbc86514a0228738848b39e6b7b8b76bbc0d2ebcfbf5525. 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/QM4TX1741049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b023e9a4309d2ca141253f5238946f7cb09de7dcc1c201e32b125ae3713d5b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA011301852.