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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6d3148bf0b5dc8343be3942abdb5d3cdb8beaf6f16c0b63e6872dfd0e02c7d. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d410f85-44df-4da1-892c-b57a366ec26b.json and https://artists.proofprofile.net/proofs/artist/0d410f85-44df-4da1-892c-b57a366ec26b.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51562d2dc91fcf31bd1030ae82fae067acbeb7e30126d248106c3f7f73e45561. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEPW92419904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e2873c8054d5e808fcbea7cd1c658ff3e0b747d488e68daa14e5e49f670e76. 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/DEPW92419905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25189fcf5c2643bc87cbd1c441729f68bffb3e2a5b371dfd22d8246f5fe6fae0. 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/DEPW92419910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e76184c7d54d131c2474984ed2287cfa1a22d76ce917880ae4920bec4f2c4b6. 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/DEPW92419901.
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 0xafb794ef5ecf69a7554f7cfb25da45284c14a04d8d2a7eac7ce7afa90771f800. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEPW92419903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf682926bf24b863b6a0998a022b9e50040c6297d1b6476d41b287b4f53a0c278. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEPW92419906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008d21247eb7537e0929bd23960c045da1a540f61b32bc98157e33395fc36073. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEXU31900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b9533bdfc45a32082538b7743a5db1edcb6c1f53346753020d302ffd215224. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEXU31900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9aa5fb6f9647be1ff0b0de8d1e944eacbbf7463584e522aee7307868cc90be7. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/DEXU31900107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c3b0273d784331bf04fd4d0e0728e625ffd313a9bcfeaf3aff47b52ac0b570. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEXU31900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5fffe5ae9a0c03871e951dd19a24687caa50509edaac0a118d46ebede0613e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEXU31900109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ee53f5cd081d9fa7f0108660b300914346af976cacd958ec2e7b70bae2fe9d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEXU31900110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d8fc20be41cf86c533c5099cef588d5a1d8657d26d6ed227eeaf40eed4cd25. 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/DEXU31900111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6863cfaf0a68ceabae541aae938b1d259b45366e2f742c96152b2302d2b24a. 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/DEXU31900113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57afb0de8934aa8fe59d7a1a6ed27755d23afe46c4aa4b22c8a8c1b27fd63bb7. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEXU31900102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e46a875009e756617dd12e8535bf8b42e5be13e7d9cc57990d8de56adaae2dd. 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/DEXU31900104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4fae497a86abdb40e1b1a19d35aa490c0dcf51c29c5b3bb9f038b96e7eccde. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DEXU31900105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c6fed2cf7e34fab3aee5451a0ff6782b9db504970fe1df2697426c17fa294f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEXU31900106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323ea61b20aa83ec9ebedd5489fd9bd42ef3734f180c5c78be223b76ce601ab7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEXU31900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5072291a4c7ed9d736ccbfd5fa29b1350c7c2f75aa5941026acad7a18507a347. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEXU31900054.
Oi Spiesser Gib Mal Feuer Damit Ich Dich Anzünden Kann
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f16115d6ce97934ad1bdf06eaa3260938bc0a9f4711a9896061652c729889e. 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/GBLFP1961897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53cd28d7a7b29deabfff012d6f56f009079cf0e72478c358257738874317982a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBMA22031530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a5448fd66a4f74522d38be55febdda7e65ed50cac7f4372e6fcffc38889acc. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/GBMA22031527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8b5a38432e741f8a8b54df945c9f336ce3a944047b5808a82d8215db7a2680. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/GBMA22031523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80115d1e5bf38617a7670829d27c999eb3222e0e21aea46f6267cb5ef42a3a0e. 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/GBMA22031525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc25aaf7ae10f9f2e3e8331d465467dbb92543f0d5499f7f41e668062f7d5c7. 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/GBMA22031532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fcf05ed5d0a10ab4b156ca340963125c9050fbeaf9b51b785302f107ad92e4. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/GBMA22031539.