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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf5754b7be4223fb0be233662e3a97e1041787f9999f5dc361a275796d8153a. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c1ffa8a2-34fc-414b-819c-4d8b6c53c5df.json and https://artists.proofprofile.net/proofs/artist/c1ffa8a2-34fc-414b-819c-4d8b6c53c5df.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e9a5ae392a59d1f515037ab01a97e54479bd2c65c73f6ec5a39493d55026e6. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:17:40Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ8B2363182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255c70968038622368ea59ece5d311e5b1240e75f142d22fbd5107999aaa5cd6. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZZ8B2363189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9769566d006a177f3938e5d1742dff7eebcb6d05bf07bcda3750dd7851be462. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZZ8B2363205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffc6b43013111c6f5dc45f1ff89eda666dd6c40a30a7478d17c515c30b16f9b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ8B2363216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8eab620504768fb624bd15f85f8bdbade62b6d61ed9fb3bf3cad9f55f169974. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ8B2363227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390bce1824e36e5fa9742facfdf7d327af3a1a1a641608345dc66bf4a66d9ac6. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZZ8B2363230.
Aguas Juguetonas: Ritmos Alegres Para Perros
Día Lluvioso: Melodías Para El Tiempo De Juego De Los Perros
Paseos Por El Océano: Vibraciones Relajantes Para Perros
Ladrido De Felicidad: La Felicidad Binaural De Los Perros
Aullido Feliz De Armonía Con Sonidos Binaurales
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d7e8af366b016c81c0c715a81324620e1a31bb0131f164f7a883be5b646b27. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTRX2451558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62405b9565d669d4154a09ec424effdfcd4a8e9b5f777aafdf840e377dfd6fc5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTRX2451575.
Tonos Binaurales Tranquilos Para La Libertad Canina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70eaf47ecd260e0d9771fd4e013ce7098b7fd49b6e8f1eff5320561422b997fd. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTRX2451584.
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 0xff9409d7e7800704e4a4778e570f18f9011f1d7f96f73045787941fbc96944b6. 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/QZTRX2451601.
Retiro Relajante Del Océano Para Perros: Sonidos Reconfortantes
Música Ambiental De Perros: Sueño Sereno
Ritmos Ladrantes: Música Para Actividades Caninas
Días De Perros: Música Rítmica Para Jugar
Armonía De Día De Perro: Música Ambiental Para Confort Canino
Melodías Calmantes Caninas: Música Para La Calma De Los Perros
Olas De Playa: Ritmos De Meditación Con Lluvia Para Perros
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb475654f08dbb104fb88a17e25df4c29034f2f8684217d9cf030d9cbc7d0cfc5. 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/QZZ8A2367952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf12a6491389aa03f2b89128f436db83a60a9a197ad1e2e903a008198912619. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ8A2367964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03dff29f2bf0fcdbf4ff00a886c0b944ad1707ae99b0902b99fef2a7d47eee29. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ8A2367985.
Obertura Del Día Lluvioso Para La Diversión Canina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71ffb9c41ffa36bdc7a87fa226eecc52e75ce00c488956df2fedb2ac6ef1ce6. 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/QZZ8A2367998.