TR or tr may stand for Arts and entertainment Gaming Tomb Raider, a video game franchise Terminal Reality, an American video game developer Terran Republic (PlanetSide), a faction in the vide
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 0x4a7e8e8d1531f3b0b3fcdad8c843dbccc38e1adea29e9351e788e5107cc671c3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d123e887-4182-4766-81e0-580a26f4c6e4.json and https://artists.proofprofile.net/proofs/artist/d123e887-4182-4766-81e0-580a26f4c6e4.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 0x826756dad8eaa3b138369ec8342eb18a1ff2670ee1057aa96bebf535ee195244. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCE7P2302693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0803c2d2c8f2ed70726b55814314cb5ec92c48fa37021776f1c77b16bee105. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCE7P2400529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae77f12b63c0aa28c4c31f3686ef28a9cb641e68d26ca8ba633433d14fdd8a2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRBXL2400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc882da9141b3eae77a2f01b68cd40d30935bfddd529562e27f7137ccf71f9106. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BCE7P2400484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400d0da81878c94d021582a4cd24a634d4e950eec9aec3a4eadf8c7caef14898. 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/BCE7P2400489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fcbf7164099081b9c9c36d6fa4772b0fe265630992d2a1383cb08fab882765. 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/BCA2A2400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14460d58bb1988684eceb0d5954475a15ab9629310306639a1f0ae2498e3821c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BCSUV2400450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf17af39fb6bcf87c82a81123c65ed5065a21ce94df823b650446e8b97634a9c. 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/BCE7P2400129.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86b8b8c02fa00e32b013aeb22a2063b62f42421631a0ba6b92b0396d6001599. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BCE7P2400074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8821a67d22684d40c1c2c3afd6d033be1a5fd1291a9684f616f0931273129b3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BCE7P2400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3000a5d58cd33f7a15b3f706a52ec31c07d16e4ac43ef661476d9b22b7f3399c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BCE7P2400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f71847f44133d6316300fd9a6581f75402423bc799155c4ed11b7607716c67. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BCE7P2400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d6eaa9620604ae431da7a855f2a9c55e98945db122f3bff5afbe0bb3393b2d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BCE7P2302854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6828ed4e18047327528389cea6ce8c044f8be8c2c07abfe5bf3f4ce86ae21953. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BCE7P2301584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe341cec17824982be373dc051e0de18431c6214554a94e81f09cebb631750b38. 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/QZW9K2341175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e1f81b604d29690ae4b0e301c31e2448bfdb32caa0e2cb262b6808cae528df. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BCE7P2301331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb970721237af927c33c862082591a1c144d306b3ddde97a044adb5a78ca08a27. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BCE7P2301146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb245127c49cf424cbfb818804b7defbd00be5fbbf23755339b9e7497fe4a9916. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRUM72401488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8174c70c4a30359dad1dc3ba7049fdae7acb3d474c2cd3e98ce9714e4780abe. 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/BCE7P2401009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe5da01171a1322ccbb158ea8139ec747ec0f41c1a40d3bd4c11940f3daa364. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZHNC2491358.