Puente Celeste is an Argentine music group, founded in 1997. They won a Clarín Award for the best musical album in 1997, as well as a Konex Award (Diploma of Merit, in the nomination of jazz music) in
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 0x8d3c168ae169d386c0d5f63f23085dd7c31a7a77bde46a49a50cc74c05ca0a2f. 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/cc3a9823-45cf-4762-b2d7-5d4dc2696b85.json and https://artists.proofprofile.net/proofs/artist/cc3a9823-45cf-4762-b2d7-5d4dc2696b85.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 0x07c8ba0443ea392d771ceca2396f593fb620a7c4b62140905fd4f50f8e9d1204. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/ARA170900146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3616246271e909d5faa2baea6ba9bfa72b1cded08b7a8aa476b9626d0d359039. 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/ARA170900148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3196c79dcbdd13d10284543b1d019a4d419fb7af0ac4cd06970871fa7977e2. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/ARA170900152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b359439971df537dc348d44c203520bd4f160cd6ecb66103c3ed33d032b60d7. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/ARA170900154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b0dd545f33322dba66bdecd709b378bee6683c93225c37b076cfed6a58408e. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/ARA170900043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ca1868d1b48d4e5ebed44f60c3da4f44f51e9de687a1bef5ba7ddce001e866. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/ARA170900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c62a98386af7f31ec30bc77809f23b24cf55fd950d17cff5be54f648397a07c. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/ARA170900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306a0eeacc35da4772c1e1599f06e8adfdeeb344d10de23be7305ed1ccf2c045. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ARA170900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3fd2364e2b3677d5fc9451a795540ca7e512c156b730c881ba7b9d70f831de4. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ARA170900048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f26642e8441191803eb87dda8b637a803ca9f0f10704d45329baa572537872. 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/ARA170900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba18bf9c5aeca9be9728360f51bf5e811152e5db3a1060352ae362326f6edaa. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/ARA170900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d380f808ee668a75a297cb84919b16a9892ee5ae3c56fb91ac91a607eabe08c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARA170900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7470416f3eba6df1a0b644d86e01c62f57385dc4d9e6bce5346257f6503539. 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/ARA170900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f35d67f1460ad975bd4cb6d30339a52976c6ae5cc1afe416b45c0c5426b1e20. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ARA170900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee26ea402d43b75776cd74dd2366651220378e55de03dc9846f2a5e7058a0b3. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/ARA170900025.