Drowners were an American-Welsh indie rock band formed in New York City in 2011 by Matthew Hitt (lead vocals, guitar), Jack Ridley III (lead guitar), Erik Lee Snyder (bass) and Daniel Jacobs (drums)."
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 0x27545f5b2a103ad3cb27876c5f799235d93a523590c66331dd4bb362a5d61ace. 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/6297ca36-83f7-40d4-bc35-4a9e60b14f42.json and https://artists.proofprofile.net/proofs/artist/6297ca36-83f7-40d4-bc35-4a9e60b14f42.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 0xacf35c19e653e1c184c5ef00874dae6c7c48a7a6c710429e827511a32d8126c3. 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/GBXR51300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfa3c5b19387922838516ce499455b42a52d0baf6fa924d7a329bfabf112adb. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/USJMZ1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebf3aeee407e484ed2528447598e98747d750b5470cb92bcf29c3a108a0fcfe. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/USJMZ1400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb147cc14aa61fb96ca2c007c72df5fc264924edc35f2c72c299fe66d4f421728. 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/USJMZ1400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec2cee8942f0b4faf5c2b09c37d52fc2bd83b48ccbbabcab7f900572a2625ad. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USJMZ1400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae931b4e0e7ff8e2be1567dbadcc0b31f19085b23105a4ac9288feaad4c78fb9. Chain 2 (Bitcoin): anchored in block 957726 (2026-07-12T16:04:28Z), 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/USJMZ1400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef037563af754472fe2592487c3eca9cfecc2dee48044cc70b04b65e611eea9. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USJMZ1400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58191c1d39c24115a0677b9e2a6eefa1f9547370d3a07c0c5771837567da80d3. 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/USJMZ1400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e4e75ca253e625fd2cc8dd485c9a99142ac3ae7f73d2723b2914023c5637b4. 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/USJMZ1400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771871be4595bfacd0684fe32a2bb13a3d616307d4c53999e212e05eaa56226c. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USJMZ1400012.
You Keep Showing Up (Digital Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac27d4c57bf9352369c747874995c42a2de83fe06e6dc649de6d36f3a48a1ce5. 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/USJMZ1400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e175a2f33eba4117880f22ec3259b6b0a63d8741d1cf94aa1a087be859cb40c. 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/USJMZ1400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31400f43111be773c3708ddff47289bd79b3c12b09d3e778a008f066be264759. 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/USJMZ1600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb98d54618a87b18961aabc4423bb262ca7bd5f63aabe01213a9da7e7ce232ca. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USJMZ1600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb526ea9d26de631c0dbb32902cf3d2ef83e4f58af51db13eb47b8c2ed62017b. 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/USJMZ1600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efa6993085cc44871415d5c64a564a80920b2153ec60c668e72ea3f69e0f0a7. 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/USJMZ1600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05188b6a111e8a79122fb260906e726743ed46ac7ef982f596e9de51314bb215. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USJMZ1600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929535a16e31ab382407f4b602b75c3609691adb5fb73c36af06f13daa8c9bd8. 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/USJMZ1600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda1827f3210c93be165e08c4b7dc6baf321b5c4141f4e6cc2654b88284d3ca5. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USJMZ1600019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c09b455c851cd3a7553fab0ea8214820bb7fc229da1336606bbb23b291d39d8. 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/USJMZ1600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ba67f5f65d227393f2e2a4c94d4cd32032d8b00a49e6d84b7305c861a8a62d. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/USJMZ1600021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99120a9b74b10340925bec631f9f1d79a70f01bfaadc67b710e4b3f0b775378. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USAK10000389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c6f6f0ad32568420264eb624c958854ae30ee2edaa46b23369d752ca961edc. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USJMZ1300057.