Subb was a Canadian ska punk band formed in November 1992 in Saint-Jean-sur-Richelieu, a suburb outside of Montreal, Quebec. Beginning in the early 1990s, the band released four full-length albums, on
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 0xb7fdada22bf0d2b2c64365304c46a67ab95aed72457e43ac5f993d378377746f. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ccbd9d7a-1885-4de2-aa80-c4007f2f3228.json and https://artists.proofprofile.net/proofs/artist/ccbd9d7a-1885-4de2-aa80-c4007f2f3228.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Like Kids in a Field (20th Anniversary Edition)
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 0x110e87fb6f04ef63fc7e0395b07d48e632fc74f8c946c88ec9d53ed429412721. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USA560566137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e8c277cd8e24902a80aa2a435d5c9f330ca3dd362f7dcbce3cbff4d1c68009. 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/USA560566138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c3def8595303b77b39f87a5fc963207dc62a17d70e6fbb7704db931ca6d82b. 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/USA560566142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380f0c0940472d6c18e8dca6987a90a6c1ae4153968ee90672b0216343810ced. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/USA560566106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e8c277cd8e24902a80aa2a435d5c9f330ca3dd362f7dcbce3cbff4d1c68009. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USA560566138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05b1cabaf11c94fcdbd8712056f2d952593500351ec651a2642a4077de1dd49. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/USA370641907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e4a35640aa1adaca8be1bd8d7b3387e9848aa088ffa05f12638ff984fd77f4. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/USA370641909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c216cde1c0976962aab27cbb5acf12765eecb14b5951ccd9e571fa45f608bab. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/USA370641913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128d2130ffb30cc57b100f1a3b5bdcb41d72fd20dd6893f3a3d3d27f49b87ba2. 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/USA370641916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05b1cabaf11c94fcdbd8712056f2d952593500351ec651a2642a4077de1dd49. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/USA370641907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e4a35640aa1adaca8be1bd8d7b3387e9848aa088ffa05f12638ff984fd77f4. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/USA370641909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c71ec3888644e19b37daef5514d2b40e4da5ff0af2f1d464b9d038af689162. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/CASE10900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363013e97582f58461886e55b8bef7497cf6f4a7ff9ec0994a3d7060a6414399. 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/FRX282427240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2b4c3831f42b72fef7170d7ac992f99fa0af31bdf74247e0972e4c95b5bb7a. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), 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/FRX872424686.