Singular may refer to: Singular, the grammatical number that denotes a unit quantity, as opposed to the plural and other forms Singular or sounder, a group of boar, see List of animal names Singula
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 0x6d694bc6e5dbb61ca5db3f30d411be6c85765d0a03f353704ed4f465dc7d1392. 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/bfb3c19f-b385-441a-a558-6f68f3360733.json and https://artists.proofprofile.net/proofs/artist/bfb3c19f-b385-441a-a558-6f68f3360733.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
24.7 (Twenty Four Seven) [Acoustic Version]
24.7 (Twenty Four Seven) - Acoustic Version
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 0x92426a60c3a00b02de3b5fd1795681c581288b5dd6d94a42fdf74caa22afab56. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/THS081023701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79351749f4e127c4fb93b5f03af04e994991e312ef457569d0deaa9dd5887491. 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/THS081100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a7652520c8a701d786f7223b2ff67bb1f119cbd0d26788386ad7cbc0af3062. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/THS081034901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf78d1002a2a5f1530edb785cf9b59d8b30b5e9f5f870b77cb6e33cf96ba0d25e. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/THS081024601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1588026e970fdae94fc4ee70ddfb766469b9f3be3730254ba7a3dab147b91c4. 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/THS081100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9723389147b4bc7b78399f41c0d6ff6fa3701c5f29146c38785e72b16086dc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/THS081100756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d2e7b6e9f6c308b49432a13f6cceeedf83424a3fde6d3e1c1319cc3b28dfbc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/THS081100687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9723389147b4bc7b78399f41c0d6ff6fa3701c5f29146c38785e72b16086dc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/THS081100756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ec1061b17c7e0faec3faa429dd7017ecdd8876334b710c5d2d2afa5861bd9b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/THS081100763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62a994daf948ed61850f327db9f1fa11e0bc9b63a12d224f66740d4eb2ec135. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/THBEC0000183.