Ott, OTT or O.T.T. may refer to: Entertainment OTT (group), a pop band from the late 1990s Ott (record producer), British record producer and musician "O.T.T" (song), a song by Fugative O.T.T. (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 0xab5765e5692f4147986f8d7bd70e94eb678e8546521c5a1e64aab5f43c6df7e7. 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/b9f56f44-2de5-4182-bec1-c87dacf68b70.json and https://artists.proofprofile.net/proofs/artist/b9f56f44-2de5-4182-bec1-c87dacf68b70.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 0x1ff016cadfedcd4f10f32f02c8a7e62ba69fb6acfb2b6f4e98c44e6bca3fd486. 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/QZMEM2270089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16840a2d2a1af8fe3ac861326bf35f992d64396cfacc0dd51f354f60b03d6c33. 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/QZMEM2270091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073344ec8b73ad18092fc429cf6cada6ed58770764ccfaf2fc4b1b93b1bacaa3. 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/QZMEM2270092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaee201e9c0094fefaac2716e2990fcf7c73380fc659221a9b26f27a575770ab. 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/QZMEM2270093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefaf4cb9b836da3457bc1e84b3d3e1bb197224382e8f581d320cf87578c86fc8. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZMEM2270094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d150ec3e8fc4a64f303b956e0348a7661077b75471add7a67d1466ad30e6f6. 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/QZMEM2270096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352bb46a2598c2ef994f0c5932757ff8f2131b05b4d4994b4052e845794bf350. 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/QZK6M2233528.
Ott & the All-Seeing I (Live at Terminal West)
Ott & the All-Seeing I (Live At Terminal West)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1348d11af8157cb58a7ddc421197de77fc203928444c3eba908fb711cb5b0655. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZMEM2273365.
One Day I Wish To Have This Kind Of Time - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2833dce33c6a89e032d9e6e2b9a98dd1031c778fb48e9751de3e5cab8872b39. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZMEM2273367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7121d1cc01a012160eaad1358462a083804a765918236c596996d87ea3348729. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZMEM2273369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e020ec94e3ed98c74a353b66237b13fea9d9d54fbccd64ea1bf79a34a4e4ec. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZMEM2273371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a40986326473391ff4ca37b9f8f3c4938018224175e2d5923c280761a51ed7. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZMEM2273373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc399e8222de225c3744bdb9aa24e34ff28a94b23abed4474932aa8723bab001a. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZMEM2273374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42400fe5fc7fb84463ae6d3f9c863326e38a2f5f32cf48b8518c62d1ff02b720. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZMEM2273375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66afe407784de6562de11fed0d6d7578d538b23d3a757d0e0fb3324d71bb2b22. 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/QZMEM2273376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cbbd91eeaaea9c88c74e715b6aa8ea190db8c73131532c47035151848c3182. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZMEM2273377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270e85bc41cd538e1fadbb1dcb9e4d62a683226eadad9eab0d1d2956e717ec76. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZMEM2273378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3ad9f9668da782b3892e2760e0ba12dcf4e5331204f62589e5aadecbd5cb76. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZMEM2273379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23211553506474c1c32e00cf4d9c9ff740f5e58a7657957f14a472d42922d52b. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/TCAGE2237000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca52f387833a1146524a5eb3c5a44da226cecf42e404acd4bff91b9e07e9e6fb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAGE2237055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2dca71962b22a9d375ead5d21237e7944cd69a1d4c3415b4c2f200ca051775. 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/TCAGE2237066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ae89c71239cd43ffaee2d04fb9d21a4c01f81e8bc98a519c8d458c8100d6ab. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCAGE2237073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebe6a23b9527a2fb2f78b36c849e8959e28d2a3388aa5b5a6654da273cae93d. 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/TCAGE2237104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aeed1922f1ea43f8285b083bf0f392ea99296c3e436bb9901a3c50a618ba470. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USHM91668239.