right|thumb|Undine Rising From the Waters, by Chauncey Bradley Ives thumb|Rococo set of personification figurines of the Four Elements, 1760s, Chelsea porcelain An elemental is a mythic supernatural
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 0x077015efdb22634c90fa50473ef55d835acf7651d97610ac177290b979a1a489. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ac33e0b-b388-46cf-bc12-d31792e74d63.json and https://artists.proofprofile.net/proofs/artist/9ac33e0b-b388-46cf-bc12-d31792e74d63.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 0xef507f082d7125fe7e389718cf0fbfb80882ca0ae8916a2059b30633facf3980. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T14:03:48Z), 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/HRAA40200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b077001cdc80e1f0d65b970feaf8bc2c636926602a38a8b6d42a745f8a49471. 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/HRAA40400115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5bc8aa449c5f1bdd83cf95932c932ea1dc8c785d3814fb89077a2c40b8cdbb. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:55:50Z), 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/HRAA40400116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7f0369f48747e0100ccb9e88cdcdf6191b5f9347c8ce1fe219cefe48c6c26f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/HRAA40400124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348358dc3f50c37c8999c18152295f13703131616d10a0b3bcb72eb385029cca. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/HRAA40800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c91f36e9c8a9c509b02905714d6194188728f8ab6c2d33a48d7c2a6a5a1a35. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:05:03Z), 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/HRAA40800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a477c7b3cecebaf5db384f18f091642448c046173367eace1490f85c495c8c. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/HRAA40800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e076efc23e5ed966ad6bcb9c6365d641444b45575870078e7e307cb1054ac5a. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/HRAA41000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5c055ac8d36c09e45026991e0ff814d764ac95d9db3489dbf62664514ce63f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:17:31Z), 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/HRA1F1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dea0371c55a701d7718eea73b932eb6111259f11c9ee3ee2852d2f9b4792ae7. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/HRA1F1600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f762deb2e880d99a4bacdbf08a7ec85640df3a7d971bc1ab7261c8312ce0098. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/HRA1F1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc50c5f23e195714db80327af8b8eab69b31353119ec6e74ecac40041c697ca. 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/HRA1F1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562780bb85a3172bea526f5c5d4c2c669ed35e899cb609cbe25ceee9925ae906. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/HRA1F1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f42f2466ae839d63c61d965bc169a0a501cae3244ea7b36ad686025cab7afe3. 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/HRAA40400121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a96ce3d7c36822e7961220fb78e52d623805ddb8434db4c8270dc6bdb2fc463. 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/HRAA40400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb9cafdfc5b065634f987c612640de462ddc54c84b4c4c24336965ebcf51626. 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/HRAA41000341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c6de919eda5883b9ecf2206fa93e8c5cb533f9edee567985598566e82676a8. 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/HRA1F1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174b314d35c417aa9d9bcb7d2690381ae650db8f9818c4e78f58005185edd759. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HRA1F1800017.
Tri Boje Zvuka (Live at RTS Studio 8, 2020)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55db0dc2a8543702b0132bcdfa804320b4ab99e7e30bc8ce8105bc5bb31912c. 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/HRA1F2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69acf699f750ba2cdadd9f9fda2f347c5a993ad58f3a50e82fa3fae020431ea9. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/HRA1F2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06dd88fda4e859433355b1116275679eacac987ef4ad70227c8012c280cc44f8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:44:13Z), 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/HRA1F2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdefebe5143a945eddfcbd75bd1ba4c8fb4ad667a66f20ca2548db1b756cad70b. 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/HRA1F2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000ad02a43ade486dbb6e8dfebc1c80fb320dddda063d36bde1bbd01f634e9a8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:02:12Z), 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/HRA1F2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6001c4e5b127ee95a75d6369c1836a8e4c9b46d5347877635c9df3d6da2662a4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/RSA221991419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b10e4439e5aa8fc733640a1c0a07239efd1653f0d3afe375921910eb092d9be. 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/HRAA41000035.
Professor Elemental and his Amazing Friends
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8ed68c3d221b4099c907f8e1193eac533b7d0aba007d93f343e337f6871923. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/GB8KE2310898.
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