Tarwater may refer to: Tar water, a medieval medicine Tarwater (band), a German music duo Tarwater Creek, a small river in San Mateo County, California, USA Davis Tarwater (born 1984), American swimm
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 0xbd054ccb4d7aeb6008141e6cfa189dcf8b09d055a2108228bfff78f8d563d4ee. 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/f964cbb2-df30-4d24-ae17-e4693d9b2596.json and https://artists.proofprofile.net/proofs/artist/f964cbb2-df30-4d24-ae17-e4693d9b2596.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 0x30cee7b809a8c3926693ad6fb90483464548adb9b7ba8ce575b2994263ec4c8f. 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/DEQ339801301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399ab850ed8b7c8aecf77d7040d3bfdf9f7160cc32a72666d8bdf3acf59f78ba. 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/DEQ339801302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355b8fc3b600ccfa88a2bc6427ad8ee98f4012d711b4615fb0f7ab9d18ee6935. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/DEQ339801307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6e8022f4d77b808808b4a16a34b75f60a5f13a59cd869bdb3589bd19acad5b. 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/DEQ330206501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c0455f43a73e1bc68de4daf55a71f49b1a31351c4f41ab291efd809a02f896. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/DEX262320401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8f1bb28758020a7bcfd75e5b1deefab666ad86779881951aa6b173db9e462e. 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/DEX262320402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ff226d91d151a47da859c51a928a4c2944ba89bc693b02b1973058012d2d79. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/DEX262320403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35903c009695de7fa2ae02e8594b915ac66b5bc66345e527e2095a2d99de7535. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DEX262320404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf223411fc7bfa54c9135a2e20a559209a982ab00a4e03e87cbf184c9fb3bce39. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DEX262320405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767926d22670d91e380eec4dce0c49f1331bdd014f34fd305a9239e62531a519. 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/DEX262320406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e32e63c69c83c5ae43a0fef0e607ece7cc27ad9eb522a98e8790fef765fec6. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/DEX262320410.
As Adam Early In The Morning / I Am he That Aches With Love - EP Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295ea87c8980df6bd1bda0ea717c06e3354e13fd08bf8e914d730837bbc9fcd9. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEX261514201.
Ages And Ages Returning At Intervals - EP Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5df5050b1a288b2f992debe9ceba6fe013c1cf6b63d04e259ed25b0145f9982. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/DEX261514202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86cb5128b5fc6cc5c4abe308724824d79a19bec28f962a9d301dae59669f4e7. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/DEX261514203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1eb94949fe29819299e00e18d344689dc6ab6999ede0b438e71f59cb37ec00. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/DEX261514204.
Out Of The Rolling Ocean The Crowd - EP Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93e287ef486da6a6a6d366167cf3ebe5d2196592523ebf65eac5c280dcf65f5. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/DEX261514205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25aba58ab8f1d9d4ca4d34e894b16ac08c399c4a6fffb11372aa919a6a7e315d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEX261514206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cd9a9fe7c1cf0898bd2f1f091a9add520129c91d4fd2b4e6031e5c85c0c3ef. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEX261514207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7229fda4ea3419d0bba31487de8371cb9de98afb921cb98690dd64d21642c362. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DEEH62100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e28fbc3f8676e9eb9e49339db23136fb18aa995bc062dfd4d2195d447a8ec37. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DEEH62100021.