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 0xdafc20b0beb81126b51bd01df6febc9c27ad83c84a5284aef3ace8a87f3b290a. 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/5a4aaf4c-2364-4e9d-a86d-a9171b435a8e.json and https://artists.proofprofile.net/proofs/artist/5a4aaf4c-2364-4e9d-a86d-a9171b435a8e.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 0x11274905bb40c7b1b3e8bd170830632fcc076aff0e76797a385928deb8fde42b. 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/HKD012318104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b2d82530515444fbec4430e99a625211de6eeafc552c3ca56f4283b6297052. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/HKD012318097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa793a9bde86f959f0fd95be7313ff2a151496616f42eff2e2e101356ad0435c. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/HKD012318102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60612f2466482d312d4068871289652bf9949e0a5e38940db37d0130e6c7e7f. 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/DGA072430652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c528aa647a9f76131d05928d56af632a7892028ed05e5e2e356d2d8b197e2b. 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/FR96X2437720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2731e4cfb1f116db9ca449076a3ebe6e7b81f5a0e6cd3ba9ca240e391b07f6. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FR2X42423636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f8740f3d78f3c663bde984cbb13641f6acfdfc26850685644d04ca536fb5b5. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DGA0Q2339143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff15b6ebf64cc450f77611f6a45f600bee26dba332c72da292d9a43a0bc93df. 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/DGA0P2302361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36232d3df7b2463ed926deb415c0e4d58726b03a2bfabdb20e76212b69e0e3df. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/DGA0H2314583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509f83502fd1e23b3f0fbc1ce90b1a27a602935f9e8efe23aaf187cc9c6c2755. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DGA0M2323532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d64ca789cbcd946c67d321fc93288f62d26740d9ce0a2d60d6b70dab3ef652. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DGA082310799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336ad8e9dfcbb83764e600cf7e409db5d930ed0afdf5fd8d84133e55547e42a1. 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/DGA062369137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9241a7c35d4337ad029c8d5b6580b46f662a3d13e5e458436a9639fbd432f7ad. 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/HKG732269711.
把养我的人养老 把我养的人养大 (DJheap九天版)
把养我的人养老 把我养的人养大 - DJheap九天版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140ea2cc32fff789a79efe5a45eb4b0fb1eafa93d9619f8782f95f83501aa4ac. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/HKG732250569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1d39cf38dfafccfb0a4f73ba9e3f0e64b66e2184bf9f9f24900a0b723c0123. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/HKG732238163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b1d8f9eafbb2fda40faecfaaacde8f4bd87b93bb327c0e39051bf49a7ac04f. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/HKG732228624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc610a46baa5bb5ceff8fb095946e5d2d3735beaee1056184154a71068757b4. 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/HKG731726420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b62b2005e2e34675096c004ee2f8d2f820859a753a118a3b40dd2a33b7a5bd. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/HKG732149174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc0ebd77c03d5a5668323cf6d0994dbe84c95b2293060500d07b42fc72e8467. 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/HKG732158448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228f1e80fc97e1f45687c88e98bc79b014c4c4bd97224031fefe08b1b6dfd394. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DGA0P2464151.