Bles may refer to: Bles Bridges, South African singer David Bles (1821–1899), Dutch painter Geoffrey Bles (1886–1957), British publisher Herri met de Bles (c.1510–c.1555–1560), Flemish painter S
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 0x6f2de3e678a6cbae0b1cbcf15d096d4618cf0fbadca38a1d096c05eb48badb04. 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/92bd6fd1-3fb0-4315-aef8-f605d6a35d0e.json and https://artists.proofprofile.net/proofs/artist/92bd6fd1-3fb0-4315-aef8-f605d6a35d0e.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 0xec70ef78dccf062a4abb46e7f85bcea7382ce35ace7887866af5d71a0e274229. 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/AREZZ2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ce09520de06774e7b80af31263795c76f657b4a6e8fc0ad6879d70db20e704. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QM4TW2307550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffff87411b3ea98ddbd50446235cd36b8088c1e7f68e0e2126210fbae3c4a189. 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/QZHZ52069488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33172b19059b599fe250f05b237becd96868d7927a5fcf1344ce2d7307791745. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/TCAHP2385601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f9faf57738c4e653f303e1878352e6a7222cd8c21bdfa81868f0f5d04462af. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/TCAHP2385605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb442bf66803cf5b07cc52522818d39e9b2c0f51acb32f0060bd60c339b076e. 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/TCAHP2385617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfee4a1b412f3ea85ba25b7507a657e6411f0fc87072ec0034c0998923fdb811. 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/TCAHP2385629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371db82a96e8494bb244f95449facc87d9af768bcfd7f546539e71634ef9506b. 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/TCAHP2385661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6c4e793c40b8b167f95d51122cc93173fa7ba25865a3406cf526450a1e66be. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAHP2385668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd8d7da5db52677efa84c564a0545689a09d6e67841316639d14ff2584b74de. 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/TCAHP2385693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d01bb45f81c5aced342a4353f4ff096ce27130c5e34f87bfdd0d1149784e85c. 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/TCAHP2385711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae59eb2f6523b3eacd7af3d8ed02435559b0e503a52ca0b0c204a0c763111ec. 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/TCAHP2385721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d00f0652b636d6bdf7fd8e3fcd230e24a8cfdbf51952407a33df6acd3ddb92. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/TCAHP2385738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e1c68b0130e2788837924b71cc19c79b91ef58838db93f72abb800c5377305. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/TCAHP2385744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2ca78621107368d96c0143e4fc77ef64ca407d79036f650a36213505c12695. 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/TCAHP2385749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f9bde7dd89f19468abffe9a1c81289d460c2798f2a74420103bc5df099119f. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GX4R52458278.