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 0x36d1cb01561656fab86d8eeb4ad2fdfffd6dddde56bfbdcfa9a40efdb1100e5f. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ae98d35-dea2-4ce0-8a66-96dd607892fa.json and https://artists.proofprofile.net/proofs/artist/6ae98d35-dea2-4ce0-8a66-96dd607892fa.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
La Calma Del Gatito: Música Relajante Para Gatos
Sonidos Suaves De Gato Para Días Relajantes
Teclas Para Gatitos: Tonos Suaves Para Gatos
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 0x770ec83f4364e26a3e6bd79aeb40e3441f3c4f2db38f34bed894ae406eb5fa18. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/QZTV32433900 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63037e0df5dfec57b0d8210d1b3c3c2b77056858f8712a89bf8aab48d5cab1d. 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/QZTV32433915 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97811918c4acc07465d76b19bd7280c231b023e6cb1f478976e0732d12544029. 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/QZTV32433923 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7103794aa1729455833f7475ce43287c33030686bf3a42c0d86ee8371b11b462. 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/QZTV32433952 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda77e7c19e0c23e32dff80041766415d70451165aa8791357eec5a97f8c08f6. 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/QZTV32433961 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296bddb33dea39977be007ecea08ec7f0efab5b11838c9e24511faef61b8aafe. 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/QZTV32433969 — a six-check JSON result.
Estados De Ánimo Felinos: Música Para Gatos
Ambiente Lofi Para Gatos Para Una Atmósfera Calmante
Baladas Para Gatos: Música Para Maullidos Sentidos
Armónicos Felinos: Melodías Calmantes Para Gatos
Un Vínculo Armonioso: Música Para Compañeros Felinos
Melodía A La Hora De La Cena: Música Relajante Para El Festín De Gatos
El Bienestar Felino: Sonidos Meditativos Para Gatos Libres De Estrés
Ronroneando Junto Al Río: Música Para Gatos
Lluvia Para Gatos: Gotas Suaves Para La Relajación
Gatos Junto Al Fuego: Armonía De Ronroneos Musicales
Armonía Felina Del Trueno: Sonidos Relajantes Para Gatos
Relajante Lofi Para Gatos: Melodías De Ronroneo
Patas De Lluvia: Melodías Relajantes Para Gatos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7c678f5dfb135ac168a41e8217e8d8b1215ea9ec77ce5be9754caaafd8ad67. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBWUL2453292 — a six-check JSON result.
Ronroneo De Truenos: Música Reconfortante Para Gatos
Arroyos Tranquilos: Música Relajante De Agua Para El Confort Del Gato
Aguas Ronroneantes: Serenidad Binaural Para Gatos
Melodías De La Hoguera: Música Serena Para Compañeros Felinos
Olas Binaurales De Gato: Armonía Junto Al Mar
Piano Para Gatos: Armonía Elegante Del Ronroneo
Serenatas De Piano Para Gatos: Confort Armónico
Serenatas Jazz Felinas: Vibraciones En El Salón De Café
Bigotes Queridos Al Piano: Serenatas Para Gatos
Serenidad En El Refugio De Gatitos: Cultivando La Calma Interior
Ronroneos Pacíficos: Meditaciones Suaves De Piano Para Gatos Serenos
La Canción De Cuna Del Gato: Sonidos Relajantes Con Melodías De Lluvia Tranquila
Melodías Lofi Para Gatos: Sonidos De Ambiente Para La Felicidad Felina
Serenidad De Gatos: Melodías De Los Ríos Y Sonidos Relajantes
Gotas De Lluvia: Ruido Blanco Y Lluvia Para Un Tranquilo Santuario Gatuno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e73bab7aedead4567e8a67a2d68136e25165d3aa1534f2c2f30d18860a1dee. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ8A2355512 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8e49cac791bf133fcb931b931c39bed807e64915a0b2523afd3d845c430e7a. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QZZ8A2355534 — a six-check JSON result.
Sonidos De Jazz: Canciones De Cafetería Para Gatos Perezosos
Lluvia De Tranquilidad: Tiempo Tranquilo Para Los Gatos
Música De Fuego: Mantener A Tus Gatos Cálidos Y Cómodos
Dulces Sonidos De Jazz De Los Gatos Pianistas
Ritmos Binaurales Para Dormir Al Gato Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344e59c7e0d723671e1c4533ab4872cb170a1390b00cb2d337390e06ca88343a. 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/QZTV32398047 — a six-check JSON result.
Armonías Felinas: Música Relajante Para Gatos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1c5b606be72a058df1e59d17023515183c231bbb64379621f158c3723e9e3c. 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/QZZEB2481229 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2b561077eaa57b4d6d2d654c5d2e5f7c686a0a2d1d576d5c4fe886d28f6385. 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/QZZEB2481310 — a six-check JSON result.
Orquesta De Paz Ronroneante: Música Orquestal Para Gatos
Música Para Gatos: Melodías Suaves Para Felinos
Música Para Gatos Dormilones: Sonidos Nocturnos Tranquilos
Bigotes Musicales Para Gatos: Sonidos Felinos Armoniosos
Ritmos Para Gatos: Melodías Lofi Reconfortantes
Ritmos Felinos: Música Hip Hop Para Gatos
Descansando En El Sofá: Música Relajante Para Gatos
Melodías Felinas: Música Para La Relajación Felina
Paz Perfecta Para Ronronear: Música Ambiental Para Gatos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72de29242c5a9275b510a9f2c7d38985ca7c01c33cf6bf505c1c38eb8202e58d. 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/QZWV32408952 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fc44c0b4faab1812cdc97d0343b6b0b47bba1cef93213817bc535e984b88d5. 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/QZWV32408960 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705ba240be7f914165eeac29743802e4ae3191d5edda2dbef3f03e6c308bb078. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZWV32408968 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1b5eb083fae558f4754e8812397db3a7c703000cb6c280320c385b7c3fb0cc. 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/QZWV32408991 — a six-check JSON result.
Los Acordes Del Coro De La Siesta Felina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774cb6dfa15171b3539950323e382770d090f20fa015df89ad86c8d2190ded05. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/QZWV32409008 — a six-check JSON result.
Las Vibraciones Del Pelaje De Terciopelo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031659d32e200b7e185cf3de64bd85259d10f91a23c6e2260347d90f3e6a8d49. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWV32409025 — a six-check JSON result.
Melodías Ronroneantes: Música Calmante Para La Relajación De Los Gatos
Música De Mascotas: Ritmos Armoniosos De Animales
Ritmos De Bigotes De Gato: Melodías Ronroneantes
Conciertos Felinos: Melodías Serenas Para Gatos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4521c9602414d9bfdebcb1be820e6f42c8ba1cc125780db2406a190e2e75454. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTV32495594 — a six-check JSON result.
Serenidad Felina: Melodías Tranquilas Para Gatos