The OBGMs (The oOohh Baby Gimme Mores) are a Canadian punk rock band from Toronto, Ontario.Imran Khan, "Punk Rabble-Rousers the OBGMs Kick Out the Jams on ‘The Ends’". PopMatters, July 7, 2021. They a
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 0xa21c49aee030a47c5aef454fc981cf033ee2f783cf6ff39bad92c12074bed42d. 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/f511b936-ae3e-47ea-bdb5-3a563934f285.json and https://artists.proofprofile.net/proofs/artist/f511b936-ae3e-47ea-bdb5-3a563934f285.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 0x2ca81bf818b3a202799032dbfc0db583c6d3993c36f87c1ee5f638c0610700db. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/CABD61705301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2926ab8fa3fceacf835af67c4e43f6d4556cac8e26c7239f1a16758e98df8fd3. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/CABD61705304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b6b574ef190b1397aec43b8c6acf12f6428cd69dc6f951bc7d93cc120f8229. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/CABD62006701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e65c1f6f9230017f10806fedda089d205c0de627fd9923cef1b99f125da327. 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/CABD62006702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199b9d4cd76e13b282044197fe77c1d8fe801dbc2b4d1068bbba5b7c61f214cb. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/CABD62006704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59653def5af91d781e272e5d647af3d3aa67aa89448fbf2ed4dba7ec03f650c5. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CABD62006705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca833e9d238b9199afce4eddae1bb8a25db3ca29723957e2f608b02a8de8816. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/CABD62006706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3df82df482db63a6270cbb10604db896cfa3ca6da28fd2d7b5fdab5f4d0631. 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/CABD62006709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e1540cf5973f9c8252f1fd0b1db73bbce5f45660294f3d2086ac5615c85843. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/CABD62006710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c47bab7ceb9cbfbd0085ae8d9a4f192ef6c874c2fdd0447c592487f5bee4d06. 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/GBDQX2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cafe0df0242664612cd0b74974f9ca1a4b5603a1a38b73d8e705d894c88a2c. 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/QM6MZ2453332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597a1deda74518e69e7bf2caec3c514d6b09a6e8b389cda1d9d031d5d66b7fc1. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZFYZ2401081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc927967837a950bd456598b5022fccf4f32360b87aed9aa97d76436d00bb26c1. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/QM6P42493219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5a95f7f9f74fba5830b6d630f4f8d6de1a7b777346e66d488c7bd1ff8e37c9. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QMBZ92438250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc927967837a950bd456598b5022fccf4f32360b87aed9aa97d76436d00bb26c1. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QM6P42493219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cafe0df0242664612cd0b74974f9ca1a4b5603a1a38b73d8e705d894c88a2c. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QM6MZ2453332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf278ac0dbaa70c9f512a09483b1685a2df43bd91e97325586766fb96731ba447. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QMBZ92438334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e985c47a45f3a60809fab6cad197b6260cbfb2a72d52fcd93787b16571d0a1. 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/QM7282426921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d90eeea2d79b8ee493d1110d904c124003c7ea821c1c4ae59d6343c3e4306a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES71G2407061.