Youth group may refer to: Youth organization Youth club, a social and activities club for young people Youth ministry, an age-specific type of religious ministry Youth Group, an Australian band
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 0x810be72d3a49460a19a534871eff7f93727e6e06a6050884598793f7f331972f. 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/84fe47aa-022e-4435-8d1f-bb0f56da9ad0.json and https://artists.proofprofile.net/proofs/artist/84fe47aa-022e-4435-8d1f-bb0f56da9ad0.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 0x2b9071f6abdd533304f69ba4bf34ab3f24fbe2cfaf51f56abf431f797362a333. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AULI00505470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa812f11ede55b0677fa061b0f129edeae0fd162bc8ca44e0234639c62b6c36. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/AULI00505490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3cc969c3f2ba12e0bcd09c76e6d44c3e8dec89a8da6f7a22a29a8fb40c59fc. 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/AULI00505560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3cc969c3f2ba12e0bcd09c76e6d44c3e8dec89a8da6f7a22a29a8fb40c59fc. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/AULI00505560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa812f11ede55b0677fa061b0f129edeae0fd162bc8ca44e0234639c62b6c36. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/AULI00505490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3fda811cdf520f9cff195a3881b9b4f5d8de9a15523090f7a63184ff2dbde55. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/AULI00624850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e6c8e65ad71ce7bc80db20740ce8c0f811f06447de08cd4d2759bb9bff7c22. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/USEP40638101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc30b7f6c38d971d03690f650a364846190e290bde842c99c5dc0f9bc563b16. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USEP40638102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057e8cc23585288a12eb2934738b33200d56ea240da86d5f771317df3aae6b82. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USEP40638106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb047d700a7275b74c0a740daedcabd7dfea29ea66cb942e0ebea8b57c75ee176. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/AULI00846400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416281fbb32933d4ff1e4751d40824f66148f0d3d88cfe64d329171ff218b512. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/AULI01924800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b544f6703e62e712514fb248279460cd5c7d7181c99b597adf053a709288497. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QM7282435200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9071f6abdd533304f69ba4bf34ab3f24fbe2cfaf51f56abf431f797362a333. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/AULI00505470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8177a6097502b7a4bba64afec7ab17b4f078ae6808b2a3f9b3dcc7a86f8f92ef. 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/USEP40517101.