thumb|upright=1.35|right|A US Navy F/A-18 Hornet being launched from the catapult at maximum power An afterburner (or reheat in British English) is an additional combustion component used on some jet
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 0xda1d828e6e8299fbdbe95500ad7aed5e8f34491baabdd9eef11ef609a6d0617d. 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/17e9a03a-5d35-48da-b9b2-0e5ef30a1c30.json and https://artists.proofprofile.net/proofs/artist/17e9a03a-5d35-48da-b9b2-0e5ef30a1c30.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 0xd74cfa5dca03f14cbf5fcfed4524f5d39eefe5218cc7cb8e1671645563321fa6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEC831200990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b70a2b9fe16dae90b27cf3a0a4cdea992a4fbfd18cc6a8363736a14ec3a3ab9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:03:32Z), 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/DEC831200991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bcf059a6f4fa48b1f0c1baaf3e0e181038b65c4900f88e994f2609e76ab75dd. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:05:51Z), 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/DEC831200992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73d1a032e215e6a0e274209314cee5c93655f7a5c4787f056188754108afec1. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/DEC831200993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98216cd6cd3345bc62fad214e3d7b6e82b028d2182264199ccf7b25b5377cdcb. 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/DEC831200994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b9c664e7386877ece8492a360431923fcaf39bba11bd06f9e23c0cdf9c546d. 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/DEC831200995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fcf6d79c58bd5626cd430edb19421762bab9dd1004bfd06267ae8a0c7e9d981. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/DEC831200996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97652dbe3b78890a656c7b909f9e3d84d5321a72cc0e372f775a2968d3c4e682. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:32:01Z), 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/DEC831200998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb61ba91d16d414ccb08c7540a67a761791ad7b5f76165ce611a70679397363. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEC831201001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56b84588ebb3c7e87167999cdc1493a4127cbe7a8c9df304b36c13cd4a0300c. 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/DEC831201002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a58f0279d8cd6aec3471f46fc3ed7e197c93b6ebc3c8e4053888f01b04f492. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:39:16Z), 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/DEC831201004.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85a0bd8f38a2b57a6f962078bf52cb31abbfffd6aabf330757bd736ebc8bb81. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEC831900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844c25be845f005a3727aad3a00d8ff31b869d27226a8cab637a1fc6f0e13671. 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/DEC831900006.