Ponz is a Spanish surname. Notable people with the surname include: Antonio Ponz (1725–1792) was a Spanish painter Ángel Ponz (1883–1936), Spanish footballer Dani Ponz (born 1973), Spanish retired fo
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 0xf44c6f12927052add55f84f04b64853b5184d5206834acb578bb70e3595c18bf. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97705c2b-83cf-40c1-8a18-c7a4a1ac155f.json and https://artists.proofprofile.net/proofs/artist/97705c2b-83cf-40c1-8a18-c7a4a1ac155f.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 0x0e141b78070e6446f373ce8509ad24bb92b4353d7f510caf8fe435cd4a91fbce. 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/QMFME2370579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44cc9a5dab6f29d571f9c3bb52cd92767647e77e62ce34e1981933f6b444c6d. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/AUBEC2234461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b04e1aff11120853f36896d516e70ce83dbb73ed36a135fb71c4f48c0b1deb6. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/AUBEC2234452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237317c4125a423c493c71440210e96f6e1564e411376ee1d3a237b29559c11b. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/AUBEC2234449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458b412cd138ddbe67fa2ffa79c7a67d65588b5f1c9dae0ef987cd392b0f796e. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/AUBEC2234456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a03ecd2ae5c7e7d8db8b5eac12a78163dbf7fb59d801aae83b238abca6ff86. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/AUBEC2234459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f229a4349015a723ace129fafa2d71730c7ade3d04d2be22a15bc52cd6eb393. 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/AUBEC2234457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c02f323fcd8c9fc019545bc25dec956e9387ac8eec5e4efd6b04a564430212b. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/AUBEC2234458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bcb6f5fb10c1038197d8b225c597e3c26b8491184183f2ad0fc956567c2d14. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/AUBEC2234460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6829dca905676da5ec1ecf1cae1397c0231af44371e01f0876ffa04210d752. 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/AUBEC2234450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba99da1958c9037a56632be869b1e73577274a9a40efabdb24d5aa15333bb99. 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/QZDA82134350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386ff9ea1efd518aa9ac5f53247c5f783bd9148110d202a32145317e87fd4df1. 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/DGA082278907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085268b6a1a89a3f748602797617bd2104dbf8052df2dd2cd6e4910c68973bbf. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/NLCK42235973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085268b6a1a89a3f748602797617bd2104dbf8052df2dd2cd6e4910c68973bbf. 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/NLCK42235973.