IBS most commonly refers to: Irritable bowel syndrome, a disorder of the bowel IBS may also refer to: Academia and education Indiana Boys School, a former name of Plainfield Juvenile Correctiona
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 0xbc6cf4980e45303d489289bcd385207391263b4cd4607239326c2517b50902c8. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3aefdbec-97f1-4240-aa55-336d6ef3cc43.json and https://artists.proofprofile.net/proofs/artist/3aefdbec-97f1-4240-aa55-336d6ef3cc43.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 0x40edb5cc7ae37785958419ecdfb44baf3bed3cf1144c787246e9adac201feddc. 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/QZTB22289398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b99e9a652ffbfcc6b2d164877398f1bdad79a1f4db47974aa7f52f5f408db9. 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/QZTB22289399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9f08f3c524f8e1133a784228599cc8332d7c56816597bd39e57ff451bea281. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTB22289400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d0dac929df2e11c85fbc9e48df2e3619f33a3ec5c32111397aad2004854e8f. 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/QZTB22289401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7886aa8c522a7ee63c893c0fc16762b7c9727d217054f5f280370f4a8809f6. 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/QZTB22289402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb056881fe2ce5c6c2f27968aefb9ac6ef29f6803ee6ea0c2d74416743630757. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZTB22289403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400f4b7996dd72405b0595b3fb04c8fe8cdb5c3dc265467b0dec236c6973c17a. 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/QZTB22289404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e6a29ccff6f098161f9cb90c29b6fb0d37bb457a7fbb800b460bf63ef6d6ff. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZTB22289405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b1464c56d4071720f7b46cdbee18d41b45fc726fa529a0ed01df2e249ef449. 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/QZTB22289406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a9ace5b1fb95240fdd4f48be3ea4a7502bce30d750f371cc8537551e6c8baf. 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/QZTB22289407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d07ca72a8bdfd5b22b78dd7177586ff5a745e4501cd7bdb4d801067e61a4703. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZTB92285640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03aeb82dfef1f0ac5c61dcaa00265153aaf17b864f34c0db20371ee64cc6de0. 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/QZTB92285641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664f01115b889ebffcbd7f7b9baa916bdae893f0b607fc1cd06a7bd10dbde027. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZTB92285642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cdc5d69a17b03b8c42559ea6a211f6f93588780219aca915353d107e4e3599. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZTB92285643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a59e26966c231f16ec2b2867222511ffed0677997d0825acac58b2eecd984b9. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZTB92285644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae312ccf18507312b9f98bd7c725e6b4491ff471278e83c2a34cb689e0a77001. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZTB92285645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ef43ffbf481420326739859fa45a30f5bad67ec5daecd3fd1cfa3e51b25ac8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTB92285646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1db4279f9c14948d1b18b960c1e061e6e1d137cca72eccdcb301932e86a3ca9. 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/QZTB92285647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71012b52cbb2dbeb3eff75d298e01934af2a9dd3d99b0534053760d47d5f2ae. 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/QZTB92285648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5e54c696a99cbffa6e4d8e83f9ca91886d081379001c789bffb448d39ccbc2. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZTB92285649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a49148180f0015729eb869839dfd473f4e8a9802c8a8b379d972ef31b6ae47. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QZMER2395896.