GDM may refer to: Desportivo Maputo, a Mozambican football club Gardner Municipal Airport (Massachusetts) Giardini di Mirò, an Italian rock band Gesellschaft für Didaktik der Mathematik Gestatio
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 0x493c6a75445b5e3ab6ee24a165fede1c4a3d15c7c75d5a78adbafd87e9f34c6d. 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/363ab942-9ce6-440c-b72c-4829fbdca433.json and https://artists.proofprofile.net/proofs/artist/363ab942-9ce6-440c-b72c-4829fbdca433.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cf71ff21a555e43580260af020e84e00ce9cda6659fae3113b37d0841e1d80. 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/BRRGE2200673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf017fa4f3bae02e735473ea3cd80329c28b2e55932dc0ed01ed9823adc83a29f. 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/BXIV82278674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf720de47ac0f5141991d0060c20e3f172ab079be158c9f0f8e05538eca53fdf1. 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/GBWUL2169766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07410d9427e801b57f9182b06dbe88f45235ab80d15b3a0a70f66683d6542381. 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/BKGFO2417014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb76c0f48ad849fe4408804734a60a8f8feea270c31c55c18aab83262b7a72a. 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/BKGFO2417002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f81a8ce5b8ec027e7b57523cb011a07dcf11480ae493feca705d962017f826. 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/BKGFO2417003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a16027ed7ac47e7f2e94d2d3cb64651bae078549aa6982ac4f9c4dc1acc6d8. 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/BKGFO2417020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c98c9e9fc2ed9af03bf2329f90a3c3c37bc29fdc1903b2e91e35e1f3c7fad4a. 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/BKGFO2417013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462c810bfd8a333652e4dcf436851903b36bfc9738fa685da792c2f557a18b58. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BKGFO2417000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bae9eb7413fad5e9eaec82d7d30bcd19186b669206bd657aff60b6f75462fb4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BKGFO2416000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e701b1d2144eb2d306eb4bb8954fe679a13900d27d4cc0044912939d15d67d5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BXIV82220812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8439aa027690d44bf25f910a71136480e0cbbda5d24a14e0dafd33964bfb00. 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/BKGFO2410000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86a0f82214ca68faf5dc25175b345085c55ad9abc7c52ec71830731458fbd22. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BKGFO2411000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c6b8aad6bd38120b401eb21e5ad612035317132802e78b7d70f51ff45ef7a5. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:29:40Z), 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/BKGFO2417001.
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 0xc640ca364867b4e2b33b9c0f10909504522c68afff7f0abb64cbabe8bbf8dcc8. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/BKGFO2417004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8838fc79fc0873d409bee357fc979e350220b9e7a7f9173ef989cd0ad15b2bf9. 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/BKGFO2417005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e6cecc36e7c76e1396de29898d48ec944ca16c0ddecd1095d5444bf10e9d90. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BKGFO2417006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382e8656f978ed698f3e1a02e8976afa2c519401dcd37182c2ee9c774dc67844. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BKGFO2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e10e491399f2a6295a3988380d3b755b686f405239303a6c1870ebfa48a8af0. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BKGFO2417012.