Sayle is a surname. Notable people with the surname include: Alexei Sayle (born 1952), English stand-up comedian, actor, author and former recording artist Amy Sayle (1884–1970), British politician an
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 0xb55bf15350ed5d8a456f3bec30c187581e2a81b24d94f71a06f1df875a6b1d9d. 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/4ec21621-39da-49d6-9311-42731bd7ca8d.json and https://artists.proofprofile.net/proofs/artist/4ec21621-39da-49d6-9311-42731bd7ca8d.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 0x30bc7191da3466c3d2e89ef922a8e3aa53e956fbe4ccddc07ca5412dff989f36. 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/QZ5FN2321186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838f97c9ef7c0d414f16cb141794c2c7840a8a400466d04411e716e5dfe5a051. 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/BXZYA2400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9709e991362a26ffd7263142bfede3cb77bb4b4ec01d969e9ae4772c8be12ec. 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/BXZYA2400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361b266f6535d565d82314f9e3cb44fc3d40570f5f6f69b0f9eed40d1cec3a6e. 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/BXZYA2400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5308392456cc23652267d50c2e876141b502adc554ec8272182a55b2799bc51. 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/BXZYA2400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43bdb732af5deca2544f120ef88d6fe5faa7f129af709002ef2f86d0644b59b. 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/BXZYA2400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1f011a8167f3a91297355ff37103e0c08817269bc8c202302fb91d4bb980e5. 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/BXZYA2400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc43bdb732af5deca2544f120ef88d6fe5faa7f129af709002ef2f86d0644b59b. 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/BXZYA2400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490f57dfba4359dafd7c7d4db6e2c442543dd80a899dd53e36f23b8feccc1c6d. 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/QZTRX2498138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e825d79caacef098729880f1f4f1ba8220f795b5188ab2b0aa5eef8798098d. 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/QZZ8B2369353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775de67520200dddc37af244f48624043dc5601227ca05806e745360f1cf19c9. 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/QZTRX2432523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ce75d1d03dc3c17b1bb490bd10f9c39ee6dc65186ee040c03cfb41774fc41b. 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/QZZEC2301571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f2debd7293f10318a1725da1d1b5680094c15d84719996eb0fdbec5ecc8b9e. 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/QZTV32206373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6574e96120994d3b79e9c05eebd4075df775319f0d19f0ea4ef8ed95a00e2b. 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/QZZEB2423951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601f76b07c358ca6ab69403d3bfab624200ca349c18dfb41d8d99ce6acbbc1b2. 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/QZ5FN2401151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6accb9c1c6d77497a9f58ae9c2bba16f990303b94a5f7b5a7755ead887c1a093. 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/USLZJ2345187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa70c4c6b803241027be12885c49a997cd0d5c1d28b5d363ac0e0e8674f16cca. 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/QZWV32460396.