Date or dates may refer to: Date, the fruit of the date palm (Phoenix dactylifera) Jujube, also known as red date or Chinese date, the fruit of Ziziphus jujuba Social activity Dating, a form of
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1286b90453dd2c3b9db7cdf9b11914721d5babf08245beed1a895c1159b05b62. 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/78ce66ed-2059-4812-ae85-65d8a7d83926.json and https://artists.proofprofile.net/proofs/artist/78ce66ed-2059-4812-ae85-65d8a7d83926.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e604ec524211ed4073922fce9e0f5900980c3d1c6c7565ae935d10fd8984b2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SEPQM1100172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41640bd5da4e7ba7038f258e2516f29b567de0a2d0d9b9280be478bcaf1959e3. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/SEPQM0612639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdb459bfaeb2a35ae8f8b5c96ec75debe28878fd41ba715c81ff1a6252699b3. 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/SEPQM0612643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892c70463ddc2271ee312914350c7adbfc175c09b0091c87ca0bb948014b75cd. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SEPQM0612649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db1bd11e4769b4dfc74904a075a578727b1f954fcd25dead214eb6236ecf5ec. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SEPQM0612654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2abc889897223d496ffdf782d1279a38c95b71dd90ab37942fd5b09c2694dde. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SEPQM0612676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8909f6f0d2728da6538e8babad2d7b0047c88c6647fb310786a2f090a1ffdaee. 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/SEPQM0612677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53635a449f3ff2df677ffc75d2b2760b3a4aac2b4c85059b07c8ff688879104. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:14:03Z), 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/SE3HQ1200111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c910fe00dee35750311ae0ebfcf4c5704e027ebe4a08311c1da094530eae12. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/SE3HQ1700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e7407a77c892e745a176684f449d47871b07aa2bff6d28f2af0923182d25ed. Chain 2 (Bitcoin): anchored in block 957616 (2026-07-11T21:52:36Z), 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/SE3HQ2200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41640bd5da4e7ba7038f258e2516f29b567de0a2d0d9b9280be478bcaf1959e3. 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/SEPQM0612639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f4ac97f163b2b3a95c4f0602ee266e25498acddafeef9b1996766990bd0a19. 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/SEPQM0614839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0a12f055da9e2b316b53676313e70a91c38fdf54c43f6e035869d348e0ae55. 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/SEPQM0613050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2abc889897223d496ffdf782d1279a38c95b71dd90ab37942fd5b09c2694dde. 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/SEPQM0612676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7df1ea9ee82a84e9a346481ff0fc134f0b09ea3f41fed63dc740451f9c4317. 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/SEPQM0612675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed3b1786761c7923ad04c2f0a4d8dd26b3ed214420ae7993490e65332a51522. 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/SE3HQ1800101.