1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x891a6a6d65a65101eec067be8fa268b068f1bcc200018606720ba17ef123123e. 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/324e4d02-b740-4846-880b-a31eeb02e938.json and https://artists.proofprofile.net/proofs/artist/324e4d02-b740-4846-880b-a31eeb02e938.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 → block OTSBitcoinBlock must exist at that height 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 0xe445beef75cf85c75d2c8c289f78462ff176cfc9071580c243085e25b67d55b6. 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/CH6540856849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73bdce9bbded8f9b6037927e11207e77b65ac2eaef25a2de5c09b70e8586645. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:21:45Z), 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/CH6540856855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9f7d5c3c60ff79e94fd84f03504565ff106086058298ac63b538b15ed70be3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CH6451501885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0d15d5530a3de0d8af0b7f76138d0c021838e2a97450386cb9115983d9cf4d. 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/CH6451501886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba9d3603ee95554926e0466fa2b691fa10756c4f59bd6e0b801f0bf58e27942. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/CH6451501889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4339caf58bf3ced5ca803b93608dc37039fdcb20e8e7cb63172871e94eacdd22. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CH6451501892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd347b05c20ef655870412ab250ded76af3f6adb66c9c18697208640c83d652a5. 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/CH6540873384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30000d2e1c5f3ff1e0a9cb281af4837e22654f8e24f12c29c24eadafd9a32e31. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/CH6540873390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f007e72e0ab599db2ddba6ed12c1dd62d8a064bf8f835d9ba761b5301494f0a. Chain 2 (Bitcoin): anchored in block 957668 (2026-07-12T06:54:37Z), 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/CH6540873391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929b205104b16b707373db8824bc6209152fb5ba54e6b426645ebca40756c5f4. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:56:03Z), 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/CH6540873392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf1b1f86e6760b18d9f3cea015ca4e2f1a7954f4dfe0a9bd0c8e9d3f5d3f317. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CH6540873393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf053eb92fe884b8206a3be68458d300a85a2a7a34899d168c1e4ab2d5f63be98. 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/CH6540873394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a68be8490d2975dd7e3d5edb203ffbb67127ad008e5525fc27c469bb8aa3a52. 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/CH6540873395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f9b7c44d88b8620df59b70617e4db270d772aec46a5f202bd80cee690d37b5. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/CH6540873397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ab5479a6421f87c73380ab831b1388113c36d58da16080a1a1409137b8b903. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/CH6540873398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f03ba30e4315f4849611e46dfa3942eb3416f055cef25a651294faf206e4cb. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/CH6451506832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6781076453555b1917cd7eb5ef6c77fe11fdddcc458723d49b8cdeb212e5dfc6. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:15:01Z), 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/CH6451506839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2002d28ffce34a33097e4c56a3ae6e67ee2f2a23e7eaf665dd98bfa95ca374. 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/CH6451506840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7b311195b503b3f0ccc410f3b6746403e9ce41aad8e083e909d57caf2ed206. 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/CH6451506841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91a14a2d4e1a99adefbecc840b1ba8088c08110721fa80881d2decb48099ab3. 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/CH6451506842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f11cd560db5ffc87f7b65eef9f9bd348c72bce7fe35de96a602bff155a7270. 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/CH6451506844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe865e91082f19fa781059b3db8aa6099a5172ced8409e5197606de71be79957. 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/CH6541752007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb32ea1c0434fa5d2386b2f99ec27ca07865098262cc0e84e98d9501869dc2fa. 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/CH6541752031.
An International Underground Tribute to the Man in Black: Johnny Cash
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02179094fca2a3986b9d4f93ee00844758569db668dccc80bc6be3ff7c373371. 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/CH6540856991.