Assai may mean: Assai in musical terminology, meaning "very" Euterpe, a genus of palms commonly called Açaí or Assai Palm Assaí, a municipality located in Paraná state, Brazil Assai (company), a Dutc
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 0xd75ce7791e99debcb94a82274014140e5b789e76cd39456be9f7f0b54a0f4f7e. 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/50e6eba7-0638-405c-ae82-cd4cd82a1d3f.json and https://artists.proofprofile.net/proofs/artist/50e6eba7-0638-405c-ae82-cd4cd82a1d3f.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 0xe4df427551d3ddcfbeeee1e3918bdb4a9c708f3ddbe2c758559fe656483c9a61. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMDA61341329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afd2658824cd75313fa5606abbc8dd5192160c6e2465e4ed87dbb65500fa8a8. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QMDA61341330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47ecb9234e437c3dc7e5a69beb64c7b5c191a2092b9d09bce2de95d4c0a93dd. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QMDA61341332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0560cd35d262064d0c5bf4226207a8dc5b0d93d8508c3e7e516da1ee415d5d4c. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QMDA61341334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de8eba089c1543a8f99eca76e4650d7d645cf4da6e5e6641f02ee96c5f8d90b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QMDA61341335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653f0b22643521e0c29092a579685f0798630ea0d4f90df02b841ccd367de0e7. 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/QMDA61341336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74690079807761e556693c7f427db497aea7e07686b249c5b2fc178cc79131c. 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/QMDA61350188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b6dc3e2359c6dfa06c20a94f56ce33c19fcdb7325bf6e054e84c2566f74bc9. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QMDA61350191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a4a85a24d7f86d8d5cc365fb44f64c6b2ad57cd8d8d9bc8df1c686f8f077fb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMDA61350194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d705a14af29034f32a03f2ddfa332076c9214d126095281aad36054d2144fa. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:28:21Z), 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/QMDA61350199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1b9ab6c133f68a3d1646162662b67214be3c925285d2b50423d4498be3d1e1. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:56:50Z), 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/QMDA61350200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f82c1999984b5238d44450da33f80882c81d9ee8476fffe100032c000674b7a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QM6MZ1453997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b928996ad501958e88839c77e1d30241a9657e2f19b7a63751f566e44b2a7bd. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/QM6MZ1454006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b218d6ca824dc75e6f0cab7d2e81021eeb4e659fbb0b0e0430e6402fcde1be4. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:54:01Z), 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/QMDA61351149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584c252a58b4e183284a816c2f4a66b36fae71a625b7dc47966a859f49c3d04f. 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/QMDA61351150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cd5dd650169e5bbf112024a69ab9467dc1d2634e5b3fe659f2ab95624e08a5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QMDA61351154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a83172b0f1bfe9c49829e62de39c696aaba5ba70f40e5ad9450a852c73456b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QMDA61351156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee653831cc59b84a59422953092a85aa2f04bfe7c2d04d37b5ff355107f0c1e. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USV351364401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc8c4caf675f470cdab8e68189c19e6aa6d9b2451d97066098fa0a0b3d9f3ae. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:51:18Z), 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/USV351364406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb57f20125edb511c4657e880cee123f47eb41c315ba507ec56f8d360d5a550b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USV351364408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef013d14d55333f7f5a546826516d26f76a5f703dd7cfc486dc40b73fa66b2c. 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/QM6MZ1454003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbf37be45ea5cc6e4e5b712fd26c09e0d64452715b16ec01bfe8c19bf5bd715. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMPU51291829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d6215c21e16fc9fae086847d31280e437d9fe1a4bf93766a7581d074d6922d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QMPU51503290.