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 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 0x3ea9b77dc6d31a33170fe74db0f5aaf58f02cb949f0b63dea11cd2f7abd565cb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32e7371a-275c-4f75-80e5-8194e0875ae5.json and https://artists.proofprofile.net/proofs/artist/32e7371a-275c-4f75-80e5-8194e0875ae5.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 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 0x978e80465b597431c82f9b90c00ea4c153c02ccd84c0dc399da05cac4a5308bf. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/GBSMU7974370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5eca88465534dc7fc50d012774cd2a31ac4ffa27f22e12183743c7a60a171b. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/GBSMU7974442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa6c4ef8432cb2c65158d9b750011becc5bfd3e27fe44d773f7c26920d150c8. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/GBSMU7974443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff21951252b0fbdb96097cdcaac402dbe109ee436a8891f7ab89268f1fbc97fb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBSMU7974684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075ce41f9934307f4462c8c43b4b501dca4f5b4d617fadf52704f35b8bf5178a. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/GBSMU7974687.
Into the Castle of the Forbidden Twilight
Beneath the Forest Sing the Roots of Phaneth
A Fortuitous Journey into the Realm of Talisa
A Fervent Call from Atop Gorgaltier Mountain
Passage Through the Hinterland of Gorgaltier
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703552cc4206adc50a1bc7a33317a01af77150484445de5f9dac87b961cac5d8. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/GX89G2583617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6deb766bfc081d9a34b456aba3fd03d8629fa146aace9089ec30923be927b1b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GX89G2598858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf90cd5dc0734725732a68735f8c9add79f3853ad0b7950bec59372203e24918. 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/GX89G2534741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032ef6ba39861e053b2530bc6b0c846322d009a68940c3098b7a7afcaa465d37. 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/GX89G2527851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3084bc5613470d83fe6fab9e011394cfef542f2f734467ea7d6eaf80410bf56. 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/GX8LD2582120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8a8f342a7f849f57614282352154343339766b4ccfdefc36c2f55c6ec11910. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/GX8LD2573399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb125217ab2634160fcabeb7dbe8ede5f6ac1051f5ba95d18f58f702cf81865. 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/GX8LD2558304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b9f76233c14f9044f4ef68df15dc2937abc2f7a53a70e6a4305d9641602cd2. 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/GX8LD2523967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcf154b808e255b78b90db0423027cb6ece798471128d2663a0b39702dee54b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GX5MX2558634.
Spellbinding Dreams of the Golden Palace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262331890de5c72b576c32a6dacfce740e0a781e6b01be99ef5d4186868c507a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USHM22444264.