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 0x3b9463046947c2e745926367b0f1c83f1321c3712ecca201c073c6cfb4d76a2f. 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/c1f77fe8-05f6-42f2-902b-e79b76354d6b.json and https://artists.proofprofile.net/proofs/artist/c1f77fe8-05f6-42f2-902b-e79b76354d6b.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 0xec9d419a551c011cec105a78aab5db93fdf23533ef7780fc12bf8456fb70d994. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/GBLFP1812535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca092fdc5c96ec10bfad606deb9066f039b4221a31c00c9fb609dabfca200b8c. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/GBLFP1812537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdf246fac6e0d7563f4adaefd1b826dfdb99a6850f716a66aab62bcb2c18958. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/GBLFP1812540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0230be2f62609f114404c03d2e570862e49c2d5d9423cf11d7d6557a02d80071. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/GBLFP1812541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1cd45139c68b15045684b178b06cc86f67a85863f3403bdb224b590a728e883. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GXHG92533056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445bf1ea16ce826d7a2d41a08bbd3cbaeb5130d5a45efb07b465d394e5bde580. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/GXHG92567612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98479afc1c671e4a15e28ee92de0b09b234b08c29ed46a042da245339ec3b6c. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/GBMA21826102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51adf14c849992035a01d666f0569ddf5f227caa6a04708967f6727ceaf48633. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/GBMA21826122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc148e328ec789484b8c46f3efdfac9cfbdabd83dc9f43811a9aaf9db155e1d83. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBMA22070820.
အကောင်းဆုံးသာ အသက်ရှင်လိုက်မယ်
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd6185a24d468ce027dd82961306911a7ea1d93d1bef70afba1d84109eec322. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/UKG8V2202976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf686bf80b81daa2bd6c49fb15d0c0b955178524b8d6e3546131a52e371a2d9. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/UKG8V2301302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef6270e4750a30cbc3e1c9a544faf5ce3d25c4b9e8c07e92b2dbf9e43341d01. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/UKG8V2301811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c19d6761f98bcb94493a44622c6d481ed991f8e8e963ad8a68c4695f51d68a6. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/UKG8V2301861.
မျက်စိမှိတ်ချစ်နေမယ်
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f12a85a46e893f457ea28db737d2f39ec5a3af00f458dfc27d311128dc9cdd9. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/AUBEC2368781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff54e3b52041649f4cc5590499ce97f41ba175bd4c66af652227e81e8d518461. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/AUBEC2525254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73de963198c1b9370fd61baaf62cc6762219613c444f1e2e85f292ab58113f01. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUBEC2525255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900a2b59428da753e99b6d398adea13901e141e0906e43e1aeba3e1b8bcb7d86. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/AUBEC2525256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66573640bc6ef737951e012cc00addc101b57589a95ef722f971f8fb8c276a61. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/AUBEC2525257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc15000c70491b47df74dd8f719d0f85553cd9702c666b623cfd38272d8ac55b. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/AUBEC2420539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd529bfbd0d43d510e1ec7868e0a89db4222183dab96997864a992668d22527b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/AUBEC2525258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b13029df1dd1546f9da7441c13761c748fbabfbfac49719a0ad1f9277f99f1. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/AUBEC2525259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb422f0a50aebbbe2a0a78216b0ea5e2bf1c8d529a23930d3d216d7c47ea4a7d9. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/AUBEC2525260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3c6e3e81a33e6d0db85a9e58744377098b84e3b49454076732db03b0555e6b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/AUBEC2431404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc61f1928611654821fd6655df39b6460dc5d79b989cb3051757b8eb8ee8c81. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/AUBEC2525261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0909830ae9cf8a7b793dbcc1a3295dfb7a17b059c3c06bd6012c7b70707e29e. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/AUBEC2417410.