Drown in Sulphur is an Italian deathcore band, formed in 2014 by Domenico Francesco Tamilia. The band has released two EPs and three studio albums. History Formed in 2014, Drown in Sulphur released 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 0x7282ea7c3a31c783083b0c42f71bcb3ed7926a754517f0a7a3838b9971c915c5. 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/f11ef7fb-7681-4b9e-bd54-d9be0d639c5b.json and https://artists.proofprofile.net/proofs/artist/f11ef7fb-7681-4b9e-bd54-d9be0d639c5b.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 0x911bab48323261e88679138ec88b3ca9e117e179ca35167891223eb09dd450a8. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USCGJ1946830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3312da725b52428228a89d9598ee430a1cc2f0d162579231dbb27fd5d7698f. 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/USL4R2074465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3312da725b52428228a89d9598ee430a1cc2f0d162579231dbb27fd5d7698f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USL4R2074465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e57d272da7264a6bd7dc572f28a437c6b59533fada4a9c34a9d0f19247ffb5. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/USDY42146593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07896217ce89573f54f08bf27cb44340459813309fe40c07046de7bf14857ab0. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USL4Q2103966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcccc2f53ee864930f159e91196b64fef04929fa6ffbc7f1a9266af272dd650. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USL4Q2211845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0302ba418ab9adbc242a0e3098347e34ecc43565967d9a0af8d464f73e7d2da2. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USCGJ2321026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d593eb39357d621203b67bb491015a5de6ab22db9100ec582b155781630a8fc. 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/ITD292402704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0302ba418ab9adbc242a0e3098347e34ecc43565967d9a0af8d464f73e7d2da2. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USCGJ2321026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f283bf373191af0fb83c820b0ac3ad94b4e774dd0403acaa059e820ddeeec5. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/ITD292402705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefc45e6141cd4adecd65b1074add7b4ccf60368ae7a7df6c12c083c6a56eb98. 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/ITD292402706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de5c775af6697c8e68de0466ed11dff82341ef779aa3365fd01a7d640253ea3. 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/ITD292402707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a020abaa71b8d1050b1f3fa3f65586f9e2a0c77fc254aa515e49d59bd5a0ce. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ITD292402708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcccc2f53ee864930f159e91196b64fef04929fa6ffbc7f1a9266af272dd650. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USL4Q2211845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1080be995a19ed6e3d5c539849681c3e1ee605391d23652f4803912d6f3f0f. 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/USL4R2457539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b133ff4c882478f5112adfc08e97925563a5ee75fe26844781b66b9a6df0e79. 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/USL4R2453385.