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 0xc337d88044e109cca22b9eb9c377952468ecfda3552471467d8fa1842de299fd. 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/3458df1a-9aef-4d67-895c-671b28137cd7.json and https://artists.proofprofile.net/proofs/artist/3458df1a-9aef-4d67-895c-671b28137cd7.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 0x2a15c21f0fa57b0038c74235690cd2b6f1f62ca11e978f6e5ecbe4e6be3469af. 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/GRS019200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7f218b64cbd66fddd4bbcfc895acbdead652d473a1487a445356884c0b9c6f. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GRS019200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d2fe9cf2f01da93e5941343c2a7710a9c15bdafee2b7de05b26f873facf4b1. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GRS019200098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bde97dc27d20c48183576859e3784bfbcdcc8ef82e059a33a73ddf96126aa06. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GRS019600084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed85e8c4ae9febf8e77c8dec555d098607547c832702e33f1f2d495af5f0ce4. 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/GRS019600086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51c2da98ec8d8aa2d73cb1a87bdb981598637306e4c4c47d0b4fe10a00f150d. 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/GRS019600088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77b424649523c34ec30928db63d0e75429f0367e31f8c612f0d967f840b5c0e. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:54:17Z), 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/GRS019600089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c32f67dfce512f681d5d1b12f5e932fc400a05c0592fa354cb93993fdf8fc4. 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/GRS019600092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7a079a36baca839eafb01aad31075f1b42f2fda29b7aab3de07d1bbc7136a3. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/GRS019900032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d0af34ff338e679f33020d5a113ac8cd5743de0a159aa338d31c1831132ff2. 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/GRS019900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4d02e0130e6ff513b58c3b936627cf88dfe39622dca777b5403267b5197cfa. 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/GRS019900036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f1342715590d35b60f2bf9723ebe4225f840b5816f43fe3b85876a946314f8. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GRS019900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237d1a7cda0271b137c8225c513d2ba8141c52d0cbb48228a3a0fadbf7ba537c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GRS010300098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e77dfd4efa0264e69de89dcdeabac4c1f8d244b3bb7c467d33400cecf1d597c. 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/GRW010400091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c3d9ef8b443a099ff0824265f81e5241bee15b165b6b14b85ed1f732052ba1. Chain 2 (Bitcoin): anchored in block 957539 (2026-07-11T08:09:42Z), 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/GROG11900167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc071079054152a6341f406ac6045c610ebe836e5c29fb8c94c8f4da20cc67825. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:16:22Z), 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/GROG11900169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b0ad399213484d555ec7af7ebe37cce9422a018ab9d54b851611740783b129. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GROG11900170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ecf98642cb866759c62ca2f299807a49d68ac5dbd235096c70932664ec3b7eb. 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/GROG11900172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa18d09814e686b1979d806c62b0a92964e9452fe9b7c231353a3414273eb72. 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/GROG11900173.
I Kaseta Tou Orfeas Peridis (Oi Kasetes Tou Melodia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f1ba839dd9cb69a204f32591743987bf503f426321a0ff067469219026f2df. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:04:05Z), 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/GRUM72301356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620c95e30b323ddb90cd73ee908878ad5b2734dc4222d9d57c6c329570871490. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T11:02:18Z), 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/GROG12400232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859775b15eb574ff0a0834241417216da948f4da5dd6e36455410a47b0be1936. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GRPN10800029.