Suéter (in English: Sweater), was an Argentine rock band, formed in mid-1981. The group has contributed to many classics in its country's popular songbook, such as "Amanece en la ruta", "Él anda dicie
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 0x6e214985e9996007ce4c04097e5a5129a43263d2704e1c26c20df5f734a2aafb. 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/87a7dff3-893a-4222-bc14-8e13368faa20.json and https://artists.proofprofile.net/proofs/artist/87a7dff3-893a-4222-bc14-8e13368faa20.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 0xf83ba7c9c232cd723d9993eda47f56d54cf0798690ae3cbbf2d02cd65a2f83a9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARY4P2300647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303cf11fd50e070e64ec60ac42d2ec987d0ca5141a03ab59f7a4e270f6063210. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARF098500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312cf40a8fe51dcf9dbb6c6182a0ac2d9b728d07128387a6828889036acec89c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARF098400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a40dd36750b5a1bf14d6126790191092c459d1a27cc1c9756dc094e9fafd10. 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/ARF098200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90a203de35b795aa24f1f79760730af9cae96d7f50bf95ead40548cecb55f06. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF098500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89dbd65c0f1e9737b97169826139ba82478a68334dfd12f9ac06050b6218f4fe. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ARF098500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a032e508d1f0cbf4771e2b9c521327ee08a4ea25e163c7876fd34023d4d865b. 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/ARF098200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff670b3569d90103e5a795f1393ccdfda4ae30aea873a80637e0b4073e89ce47. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF099400371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f153eec53de71a41749d22b84556494d4369308188e0b4e60607ed51cf88241. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF098500091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90a203de35b795aa24f1f79760730af9cae96d7f50bf95ead40548cecb55f06. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARF098500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89dbd65c0f1e9737b97169826139ba82478a68334dfd12f9ac06050b6218f4fe. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF098500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424d276d9f6844b5939024430f3b51cdee42202a99630ebbac12f759ce15835a. 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/GXBDS2375375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530aeaa8d72364d47b5d5701090b8e68974d2aa576bba907c5b6a6a853049fb9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXBDS2313012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83ba7c9c232cd723d9993eda47f56d54cf0798690ae3cbbf2d02cd65a2f83a9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARY4P2300647.