Tomas may refer to: People Tomás (given name), a Spanish, Portuguese, and Gaelic given name Tomas (given name), a Swedish, Dutch, and Lithuanian given name Tomáš, a Czech and Slovak given name To
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 0x5e53b9e44a9a825473472846eea6a48eb9b599c5462159f6e6d402851f9b5109. 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/88b16fcc-b264-4c07-9ba5-d770fc393612.json and https://artists.proofprofile.net/proofs/artist/88b16fcc-b264-4c07-9ba5-d770fc393612.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 0x8261c351d089b73b8d15a4ac10e46588cb7ce4baadbd18f0b2b18592f9fe7706. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKSAI2400144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55831e27fa2aff84905bef0ab86d23aab9ec8da25d3ce87ccfd6869c3a9a2562. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKSAI2400177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0025d47cae18784941bc9fba55170b803fab256ab04a389d20dd50144cf71285. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKSAI2400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc64b8853c3e6b678ddb38cb151d9723894a857086c3af595daf771c55da4763. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BKWDJ2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67965c73c902e2436189ff4225ab9e0b4602e782d8e1065722200deeaf3dc688. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKSAI2400155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9a86e542d8410865a179f7bc19cedd1f041dd018d90077ebb81f7a20cb114d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKSAI2500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7371829daab8d4968c71f5cc1ff816ab9cae32178701f1f7fa757b58fdf6c94d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKSAI2500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddcadb965eed709dca6f19202c0ce61ee6fd2135ebd33ee6eeebed0a078682b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US7VG2517170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198b3c83d2abeed15f27e762b15d08b654c0d3fe236729280451b8095a712a8b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BKWDJ2400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a88bbc7ab01c10744f0fa6c90b564f3414f1937863c7958cef50ee561e6e37b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKSAI2400221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0b60d1a4d45c5a8fa5bbf8225eb398b33b778ac17feb32cdec7fad5f2d5d61. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKWDJ2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525fd7214fdcc02f91624aa833a98a9ff4d3548fd4c3b9fac3d8d516643da965. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKWDJ2400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271d4b6c261778e3664d7eee531e7163b436f68a6b3275c9187b962ced319b19. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKWDJ2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf812edffaabaf93707c9d4e14ec86c7b5d8f6e11825fdd10fdffa8e24e74ddcb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKSAI2400202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec43b0142a35a527db8b106c6ab4703953eef298020cfc49d296b3380bdddcf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BKSAI2400188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379f9ddee97ffdd4bec144c17960f6ec90f29156d6018476afabb35a20504d41. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QT3F42442826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ba096ceee7a48e8c0f64cb9693586b2f6837ce884c1b31ba3edb438abf422c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BCA6L2400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5571177a1609536797a52de034be2fd3302f00c38293c3e60685badffcd4ac94. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BCA6L2400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3022334584d7e55a61ee084c3163225e63c800413f6f4134d2454dabe168ebfc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCA6L2400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdad94a4f47aad2669d0a78bd453025eaa8ce6f99ab36cadb9d5f500d08f1eb9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCA6L2400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b38c1ee430d5d774c2417415def9b72c5f7ed6c3eabaea1773b7a4b57d2b2b7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BCA6L2400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42199321fe8400f052255fa9a512b06c3b0badd21469bfc1f819259dae29657. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCA6L2400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a23f6b963411cb2be76a6b12002ad33fa0a09a6851ddf42b5729f1654cc5e9a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BCA6L2400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5aaaab1381a951bd00299a7a1a96cc9b3a19a70cc0b6f5f9dab6dad9dd21e6b. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BCA6L2400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9509916459931e12ae5107a32fb89ccbbbe247948c55c4ff140a3013e7231c9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BCA6L2400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd90f97c37a0f1553d7b33162bdf36715c47131db4f6a3d07f8bdb52dffba09. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKTKU2500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948711325fa482b235f71c5f177378612ec6479dbe5607b31fcf42dd6b5bead2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKWDJ2500008.