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 0x2e65dc343f9d44982a04214641893366e39870040c7236bb5ed983bc3499a2ac. 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/6055e039-afe9-4533-bb11-4e30168447bc.json and https://artists.proofprofile.net/proofs/artist/6055e039-afe9-4533-bb11-4e30168447bc.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 0x938a0f3c5c246de1de3039c4725e4c86ca43956a2da7c7ed3753679a1564a8bc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ITLU51838616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187bc7e261fcc6e76cfe3abf5888928c980f2430e34c70fe8ab293571404bcec. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITLU51838619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eecfcedc011dbe375a42034209d51e62345ec7e4d0f0c08a6bdbbc938af38b3. 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/ITLU51838624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb71c3149100a3fa208387266124c94f0e703b85b679bcc3f05f462466bf2e8d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ITLU51838627.
Bañar a mi Cachorro - Canciones para Perros
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9bbd8ad71bdb50786870de7a6443e0550112093c180b71283f78e472ddc13d. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:54:05Z), 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/ITO102064594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634d9a04ed49a3b223e8853c75c330cdcf8475db6b688d98f8800c36659a14f5. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:38:11Z), 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/ITO102064596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58bf9dbcb64c77b08eb2089466489787b254aa9edc35d4129d810e17df2b23a. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITO102064597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe870303ec85672242883ed870d87a0a2e43a51e20872b9180db62e267023db9c. 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/ITO102064605.
Descanso Tierno: Música para Dormir Perros
Lofi Relajante Para Perros: Melodías Calmantes Caninas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd0f2e72afeaa5835f4e57a6957fbd1776abbbe5fb6b112b0f704a9f5aaf138. 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/QZZEC2420026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a66940c7e42a16f76fce3cdc753bc64ac746c36b43edf0780ed30458be90a3. 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/QZZEC2420051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x080239cbbf15d58bad56baf08c8652bfa1cb9162f8bfd808ac07255b2c60a772. 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/QZZEC2420069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4571bc07c1e7bbc4de8388baa7c547012f8c053c9f21de68c14e37eca18a64. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZEC2420084.
Música Tranquila Para La Noche Del Perro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb645f43c145ada692a3c0b09bacf7a990ead2423b4a995eec634fb17c290c85d. 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/QZZEC2420088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5656d6de56a95372bacd532c8409425f7a8106dd594b0e007d8af884bf859e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZZEC2420093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84d2cd8893115d82817a5ef6ed1392009afce079d4b183e753aada638e7d141. 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/QZZEC2420103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92df154e5ef7faff8c00de6043df84e558c1ebe922ba27b00318e49c734a36f. 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/QZZEC2420108.
Melodías Relajantes Para El Día Del Perro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897f46bcdceb870ae135bd72874de47115299a2ad0e61de587fac751297740ba. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZZEC2420031.
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 0xd161bd264d961c968de1c1fe78b0c33f315ad3a8fc814f47af203ed0bb7eb1e5. 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/QZZEC2420037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f688dc4bbce569dd48b3eec9572b7a3bf46cd2e4fade48e02677116549e10ba. 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/QZZEC2420063.
Ritmos Relajantes Para Canino Confortable
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd531777bfefb09591ae87213be018f2a30b149f21b84868b0a4ffdc3130067. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZEC2420075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4005d9ce322fc0a107de833ed1ce447bf48e0fbac811908966734e305d40c180. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/QZZEC2420098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4453712645557e85ea2803d90d8e7ae2fc55b914c5b6b121612515a77e98430. 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/QZZEC2420112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef0e85def9aa191718e14afbe639748614914e31d29faa193c73aac558107fe. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZEC2420114.