Dolce may refer to: Places Dolcè, a municipality in Italy Dolce (Plzeň-South District), a municipality and village in the Czech Republic Dolce, a village and part of Jesenice (Příbram District) in t
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 0xc2516979ec933d471c95a56a08e7f992fa8b317ab433fabb542e907c410ed6e9. 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/0e03efe7-3870-47a2-ad9c-fe01ae4e3656.json and https://artists.proofprofile.net/proofs/artist/0e03efe7-3870-47a2-ad9c-fe01ae4e3656.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 0x3478ac42f586d8b9b92ad7dcdfbf84839bbeb49a73999838887e62df94305bae. 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/QZFZ72150966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c719eb4993f701bfad07b51b2318cea11d755a974c869fe030cd22746f304d. 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/QZFZ72150967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd9903f8dc77d53673ada27e143f342cc821eca556812eafa419a5bb3bf6d89. 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/QZFZ72150968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98ad37a7f38d0e59a5d889aecdce037ecd4062ef1c30bc4639e46e63f9e546d. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/QZFZ72150969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd46df3f851629bffb9590a36d1e1278e7a8407c3f23935edb716ae99eaf25b. 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/QZFZ72150970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc60c812b72a9861b6f580924c8b455e5516fa13e37a23289e111d1a9226113. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZES92194210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf477e1e2559268f89ce1fb81ae97b29f1f9b36d420a0f66f045fed52d9e1a1fe. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZHN32182983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3b5bfa63891925805023c7a8821be3ed8826b5f0e03726d79afe1f50777b71. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZHN52146389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89336ffc8d1d2ac8ed2ae9a30a3c7a8d011afa64ce1477c83c181ca980b42cb4. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZFZ22291807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d82ddcfa3e9abcd2788e809d2efed2fec09935d9fc97f72d8c1d0ad47bfdcf6. 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/QZDA42267540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9dacf03fdef91953ab65de735a729e7b082f079a1ef58d141e24a613a8dbc3. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZDA42267542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb407888cb011e5801f0c0a4c39c283bdb330196f5b233b8aeadfdcb3ef11ae1. 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/QZDA42267544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf991d7f82126776602a96a0a758c1fc54f2c7a1387f89eedf98ac124255b3ae. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZDA42267545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30e57d030dbac20e9cddcf08e724012e6902841fbfe6c9b017bcd746500c55a. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZK6H2203792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4de4e2a319fa6ffb3d49a2e0f7f0fc140d14689abc62ed354511567e5763c4a. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZTAU2370807.