Robert Romeo De Cormier Jr. (January 7, 1922 – November 7, 2017), sometimes known as Robert Corman, was an American musical conductor, arranger, and director. He arranged music for many singers and g
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c208bc4f1ca64140be54ece6d5652a7ad9d4f03076e125fcf195d13e636ce6a. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c99ec05-add0-44d7-912f-2efa1b8ddb79.json and https://artists.proofprofile.net/proofs/artist/2c99ec05-add0-44d7-912f-2efa1b8ddb79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bobby Burns - Music Celebrating the Poetry of Bobby Burns
Viktor Ullmann: The Emperor of Atlantis, Music from Terezin
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845fafd713c365ec8e664b9c2b51cb06849c03f2b2b54baabbf3778d81e5d406. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLA508643304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591601df6552f3d8a35f08cf56f05d64d3a2223a38c24b678ec724e2b3526657. 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/NLA508643305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52cfddd623c3a517fffd56b3dd690a65030b6643c77f5f6dad5f791e4e535ca. 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/NLA508643310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660e68bda58b1edf44787230c29679b1b5fde8aa7a8df7b00d41f0087302d290. 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/NLA508643312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78314c397f6b33e3002b6a545380447fb51dad99ad3ba426a39f2a5e968f75e9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLA508643313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a17d87140d87a9dad55a52c61010c614bbf38ea081a0fa3eb33db9f0fc1bcae. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLA508643316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b76a0cd2253f4c6883bfa1caceca0c4be889375d16743e01083abf1bdf816e3. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/NLA508643301.
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 0xfe97e65abd9d905d308f19db180222b12c6a2c5eadbf6785a470a917e1099c4a. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/NLA508643302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c26e9cadb93d5d61df33ef0cad15f37e8e1eb9916ed048c14e68f105f82aa27. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NLA508643303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c40c94bd7ba214ba030ea2e953e8a559973eef62cef9fc10073c26c7a2cdc1. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/NLA508643306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b590f8d3fce2e7552eaa4fee5c38f64b82dbcf23d27a0819b59b6d816addb5. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/NLA508643307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2bf60687a031f2451a7998944215ea2663a7b9b94f7cdd492061b788a1e8fc. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/NLA508643308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48c0275fcd1440834f209f5b20ba9fcc428605fc52177c1588ec3d02d73fc72. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLA508643309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad9ebc532ee261dc99135dbc6e328cfe8428787bf6036d22896121a05cdefe3. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/NLA508643311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b4181a73c31903c7c0cfe99e35d05e317edfa978f5844d7249f38c5d980dbb. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/NLA508643314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fc4ef72ee26995a44e18a6d8dbe18a9c4c9c0596702c12dbbaad36d649cb0c. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/NLA508643315.