GSA may refer to: Commerce Citroën GSA, a French automobile GameSpy Arcade, a utility for use with network computer games General sales agent, an airline sales representative Global mobile Suppl
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 0xce0514f5157d1881c5ec2cd1825818a1caf0ca40c3c5a8c970046bfbb99fec14. 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/dadcbc6d-9c84-4a4b-a613-cf561fd4b022.json and https://artists.proofprofile.net/proofs/artist/dadcbc6d-9c84-4a4b-a613-cf561fd4b022.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 0x9e1480e27c5f2d7a82c6de6e65ea85faf68216c16d9b11faae5f862aa73e661d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/RO2DY2300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1480e27c5f2d7a82c6de6e65ea85faf68216c16d9b11faae5f862aa73e661d. 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/RO2DY2300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a02c8bfe90aaff0cd706bec2c9e8803482c055e4d2466c12194b0bae625d24c. 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/RO2DY2300099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782da2e00a7e09126a45710e9dfbc743a6e86fcaa447c26e1f99d6a3ac41d10c. 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/RO2DY2300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6127bc97d7fe1c61fdc506effbac0cc36930af21a2e4f58260fe86c603fec7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ROUM72300206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444cddd2fbb4bbd481996e0753d83402e99d4758ac5dfcb39c9a7dae3e7ad9ca. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/ROUM72300176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8b72072a05f3a4a0e166f639c56d30e2d1c522cd68d4aa365516cae7425fd5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FRX762400683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe90a91abcb5534463f1ceee0e2281288c8283d155150f5594bc9020c2648dbc. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DGA0T2428902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3da3456f478b26a4a98293fdd904ec0510be478aca572dba170f642c5dbf2d. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/FR10S2526237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3da3456f478b26a4a98293fdd904ec0510be478aca572dba170f642c5dbf2d. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/FR10S2526237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee06ed36b36667633e9920b7ef63cfb69b0018257a2799f9d6c2ce0e8e2bcd71. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/FRX282548106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36cde1b76dc3ffd069fd8504748182a01ffadfa78b82d8d9d99f79b2eab1b7f3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FRX282548108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc7d33af6e7e53a2d96ba72e767023a806d3fc1b5fdbf5a0a9f02531eaa638f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FR59R2555392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ac0f66ef2f7383da2a9b3ce701d062ee5f46650e1626bb698c9d2eb80add60. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/FRX872579873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4e06d03f5dff986720380a2c2e36a5946de7fc063b60d7179f4deaa7d8e79f. 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/QZDA52138507.