Yaya may refer to: Places Yaya, Çan Yaya, Congo, district of Niari Department in the Republic of Congo Yaya, Russia, an urban-type settlement in Kemerovo Oblast, Russia Yaya (river), a river in Keme
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 0x31b0c0fe19a3296cecb1442b42f5335639389ca251b6aefdd7253d89358d18f2. Chain 2 (Bitcoin): anchored in block 953627 (2026-06-14T11:43:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2f76f0b4-ee96-439d-b1d8-d445d999c761.json and https://artists.proofprofile.net/proofs/artist/2f76f0b4-ee96-439d-b1d8-d445d999c761.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 0xd6f82105648e56d279ce2f17a23bcfc5939e91d8cda8cfa3edc34845c348f25b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/IL4070900217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d0c2dc9de4c2fc7e3c2f9ddf38f1849417106e5bb88151c87096f89385ff0e. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/IL1012500792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc925e7addd89d2a68875605268b369ef90b17aacbffb75f95d2c91883eaf64. 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/IL1012500789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b168b613c3d7f3246f1a741cab0115c820a4d35bea250dbe51aea39f76061f. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/IL1012500788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343a59f015ddb53ab1418d7f47ea668185b9caaa56a5e468e62382a83dc1ad8d. 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/IL4070902128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ba1c0d5c1eabc32417041c002940dcc3ac5781a50a774b463b6fb7ba0bb6dd. 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/IL4291002266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066bb97f1625e0248e14d5ff416e9ce6cfbdc8727806ff815c2a0ec987db6f13. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/IL4070902129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a1f21b5d5461a8f2533447c86a2d69310c6a138b5c553beedc0f6646497821. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/IL4291002265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc274a3d7f5bd6e151229b7e0fb8d68e74bb7fe0225e2b99ac6d4f1cc68f825ee. 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/IL4070902132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b5b747e57483679d48d4f2991fef63d614c3e60953a86d90abcd1498b8bb34. 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/IL4291002272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f2240eda35d503a03c0a7f570e8c774cae46aaca6c888534f397a34efcb37c. 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/IL4071400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fd8891be2723b1ca7c2ec2ee9b9d0ecd76e372f22f0e65619189914bcd6f3f. 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/IL4071400247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8990c8e102abc9345ef42d3aa9c6c0d6e197285ba6e73cfcdab92d03eeed196. 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/IL4070901292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9af1669aa7d8d096ac04a1a8a291943ea1a4ed2c865ff4d9fe06ad3209d654. 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/IL4070901298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24348c8de7bcdf3242cf67365924ef8037e4a4e1ea6936190a27975c5cf5f60d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/IL4070901301.