Platform may refer to: Arts Platform, an arts centre at The Bridge, Easterhouse, Glasgow Platform (1993 film), a 1993 Bollywood action film Platform (2000 film), a 2000 film by Jia Zhangke The
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 0x9492d347997e947e6bc141e36f5e143a6e5651c8ecaaef225c79e92aaca8bd22. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b403488c-f533-4dfb-a206-bb44a2529d30.json and https://artists.proofprofile.net/proofs/artist/b403488c-f533-4dfb-a206-bb44a2529d30.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 0x8a960f1f1af6ff648879a43ca21b56e769fce864cb8472fc33ba1b612e57cb8b. 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/JPG102401647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f65c2abd8b958a0ac845df355b914de51caa7418f3f2cc49e99004a873ec03. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/JPG102301574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982aa472e952f4db3ac09dbc08c61b441032eca3052c008c1235ea0a3fe791ba. 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/JPG102301575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73913c5019b25c1013378204a7fef9bd7ed5234c53e51d26d5baf84f7fc498f1. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/JPG102301576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9af31387af934ab426074644d167605a433c31c022e7240f75d6dc54b416d2f. 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/JPG102301577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca3f8a470a5f54107d36d7025bc74c258eedc08c066d46a5d08d7566a1f2878. 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/JP92A2310731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157b9e6ca97d42a2a66695239b0164d454add568d978087dfaec58c63400f305. 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/JP92A2302147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61688aec97606ca18160beb6565ede12cdbc8bcf2ad407f82115e7b4479cbd26. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/JPG102500134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30223c08a96e8069e50f7e8e53f0547bd3b455850ab7e55d0c067de77183a2fd. 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/JPG102500135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4508c7cfa4afd1799b9cfd7f72beec2e0b220c8214fab4493e196639351dd75f. 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/JPG102500136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5dcd32efd9bd109f4057aa5493d6911b72ee1d7daf6b9c32a6c6900ac8d2508. 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/JPG102500137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a960f1f1af6ff648879a43ca21b56e769fce864cb8472fc33ba1b612e57cb8b. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/JPG102401647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cd50f77cce71ba914d4a6923206b078726f2db481be352ec36ccef5cd0cfc7. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/JPG102500138.