ARTES (Advanced Research in Telecommunications Systems) is the European Space Agency's long-running, large-scale programme to support the development of advanced satcom products and services.ARTES is
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 0x7d7cfcf5e8c4592feb468ec9673df191f4af78f4fab770d27e88f74db5676c77. Chain 2 (Bitcoin): anchored in block 953599 (2026-06-14T06:43:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e84a61c-563d-40f6-9e09-a546846b0834.json and https://artists.proofprofile.net/proofs/artist/0e84a61c-563d-40f6-9e09-a546846b0834.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 0x27f61bbdc16d6ab20d4a589a872db6154a134b8d5d99a49f0383e49ebdf8a4c9. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/ES6920800765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e1df0e1d673f037f98857c55196b8bcfbf010706a896901ddc944f7bec68f5. 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/ES6920800766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45df57277887ca00533b92f2aabcfd67079a301e78ab4e4163023eb09746b90. 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/ES6920800767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ac79b05a5ee6e0724dcc191f14d2973a43bfebc893b65140cf1e5b29a88756. 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/ES6920800768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb621a6a9b732338ab46ca8ef6685ec0a684bac589acc3fb6389f688ca0f339. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/ES6920800769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52770580328b80c32911f776edcab03472837e8f223fee19ea6235501f0a042. 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/ES6920800771.
A mí me tiene ganas mucha gente (con Kultama y Sicario)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d70cf4922db3cf77446ff9d6f4f6a5fb56402066aba2d33b0061dcd56f1ca18. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/ES6920800773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d1fc0d6470bf25491c3649ebb0635d3ad74ce14f400c91ef15eaf80ed04871. 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/ES6920800774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023d9799fe200df28d9339a84074d810a1ae9e29ea647511d13ca523f63e90f7. 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/ES6920800778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac432aaaa5ea19d876566eaa470a7a9341ecb430683b21fd62a37a862530ab6b. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USL4R2408190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d0f90ad40e699499c53cb936ff9c8cf635075527db470e86f034b38a903895. 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/USCGJ2558571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3739d54909e23d69c67066d2cfebdaf6066166e536dc9e10d200034d145d6d83. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2558576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b65fe16ab53863401e72e0a0513008e9a936915819c7d1da054d6e732c06fc. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX9P2043591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06fdb3cb16b210ae72eeb09fbfd62f25e6ebe878dbd4b4c4acf1186daf940e8. 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/ES31E2300455.