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 0x80e813a56d943de8c83336760256f744bd0e108e817ffa5404fe1c7ebbe22eb9. 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/7003b599-4503-4a1c-b589-814e462574eb.json and https://artists.proofprofile.net/proofs/artist/7003b599-4503-4a1c-b589-814e462574eb.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 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 0x59aeb2e327f75667e697b40ea182d4f3409b058d9d00044c9ced2e782e08d856. 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/USHM81696963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94901ac6ec88e99c27443b29bde897539823235d9c2f8c2becdcb77856d1f5ea. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/USHM81696964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347c6f9a8e29efd79a473441cec6135e4ba07cd69398c1abf933e99640c7c009. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/USHM81696965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72465230e68d5d712e8418a0427b8e9779be487d54b27875bc18405bdd2b852. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QZNWT2060836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1e1e4cdcdb284a990040a9625bacae9ae8dfbb45ee75af3187e124646d037c. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/QZFZ72159815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3156513fcfcd5c30397f4e71638b7efdd9ede4349c726c9ad8dff47b7832af. 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/QZMER2289990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbb8d2232678772e8e81399cb6bf99e66842004705a4a70ee76aef27cb917ed. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZFZ42331546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56efde62f4017f37ea4b159f7d407c7264119a52dce71693b7825dba7b9acb8. 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/QZTBB2310234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497a4fd2eb2f8ecd9560f9789b6d92daad5da9b35058bc290e468449a98ef4ae. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/QZTBB2310235.
¿Cuántas Cosas Podrían Sucederme El Día De Hoy?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4d191c1ed7426622933a9b66c66338c1757a3f8d2518861363eaf5828cb726. 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/QZTPX2413337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe484ed5f6c8227490186964cbc6cb8915721ec8a0663d7eca9aee6906295a69f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/MXUM72501763.
Agarrando Vuelo, Vol. 1 (Live En Agarrando Vuelo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b105d97af1389108f803bf30f7bd4cfbceafc5c2d5550825110b1f6c920896. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/GXBAV2469032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49904cbaec512cac5ec2fb11035de0555a590d4a000b8410daac19b0db0a4b76. 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/QM4TW2368283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49904cbaec512cac5ec2fb11035de0555a590d4a000b8410daac19b0db0a4b76. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2368283.