Elephants are the largest living land animals. Three living species are currently recognised: the African bush elephant (Loxodonta africana), the African forest elephant (L. cyclotis), and the Asian e
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 0xa4bc4c4b95316a5d2caa9af9e549ea36f618d66169495aa1ebfc161ae8d9c26c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f98d7c7a-8878-4c3b-a921-6a3a60f0902b.json and https://artists.proofprofile.net/proofs/artist/f98d7c7a-8878-4c3b-a921-6a3a60f0902b.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 0x6ff826dab8de36b7918ae9c1cd3fba8c1efd8dbd8b7391e8aff651c811b956cc. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/NL3ZC2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e51f2265acd1019b8d1e101cc24443bbbcffe770b06390c33103d1be1124261. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:50:16Z), 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/NL3ZC2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4e3759eafa63b262ec810ea1fa90855169f79a97eac370ceea57c655641162. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:19:19Z), 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/NL3ZC2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb85051118687e562aadedc53363a27d56309ca311bd703a8079eade615d273f. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/NLB602100338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b692da544db49e259a2f87bf460e564275750b512a2de27992e80ca0cb0c064. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/NLB602100287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810ebdc0143b319102c8449cc9e3b567f98fdc212ad1e4322b5e864c692643e6. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:22:02Z), 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/NLB602100288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475b6c70a86ef38f4560a72785667902be5b16484234408cc88cbdd2b638bf41. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:17:23Z), 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/NLB602100290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bdbe71103e4bc6be987e40284cc76c68bf26403eb578480eaff930558feb8e. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/NLB602100292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25bb287ce29fe68217b85ffb9464590d546c3ea46b5d2d2be9a86c57edaed906. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/NLB602100293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070085ea164028e8275e4829039ce1cff3bb808c1f506c9ecc52bb3498ef7894. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLB602100294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb85051118687e562aadedc53363a27d56309ca311bd703a8079eade615d273f. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:04:32Z), 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/NLB602100338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79234bad18ff3c6163032cc66610fcb46d61c286febaf2b0552d5e8a0bfd042. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/NLB602300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662b15225c855e380f621c38629a72adc336d62ba7c12bcc2c7752969bfb5e10. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/NLB602300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76638e46338fd664535d2c167ab13e8da6e1370616ab8f7af904b5c638725143. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/NLB602300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2fb86c5fc523359eb5fe37eba36ed512fb336f82aafe94e60dab1f14583fe6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLB602300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b17bdac486d5e3da333d0b7868c09b73227cfe678059576defcf7671d2a7621. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/NLB602300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cb598699fc552ab6daaf94ae2823671b49305689ccd48529445a8d89962521. 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/NLB602300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa211063fa327509ff3a3349cf2520025c981d96bddb3334da4cde43170fa44a8. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:35:56Z), 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/NLB602300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532099ad68f225807319ff5cf4650df8442064c3e2df0608e88c3372ae61a1dd. 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/NLB602300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4985cbbb505a23ac6fe5347bb0b67ab15c79207513e35a7244773c7afe633f. 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/NLB602400288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a677ebe1e5b34de83d643debb2acf318c1efb6de452539ce46b12f1933571d0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLB602400334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b0b3517bbb9bcca708cf848d924362a71d45863016fb85c46974702ca45ba6. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/NLB602400358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a677ebe1e5b34de83d643debb2acf318c1efb6de452539ce46b12f1933571d0. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLB602400334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab3e3c789adb3fa23a94364cc59e27e2f6e04c923e1b82af68a906f01ccea34. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/NLB602400251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf12d3abb3040a4c7222840cdcea7362f631f542eec89d3fb71c92a62f0feef. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLB602400330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4985cbbb505a23ac6fe5347bb0b67ab15c79207513e35a7244773c7afe633f. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:48:02Z), 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/NLB602400288.