RPG may refer to: Military Rocket-propelled grenade, a shoulder-launched anti-tank weapon Ruchnoi Protivotankoviy Granatomyot (Russian: Ручной Противотанковый Гранатомёт), hand-held anti-tank grenad
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 0xc969d4267204d1001e03afe0a2d5c9fc8489d5a64a37ce61ba028e658008a193. 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/ed3d24f1-b02b-40c7-b9cd-68be330e1feb.json and https://artists.proofprofile.net/proofs/artist/ed3d24f1-b02b-40c7-b9cd-68be330e1feb.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 0xe8140c4fb99b0d6201bbf8db5eb137ea0fc77c4d012181fefd21688a5432f6c6. 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/TWJK12200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fb58e77878cdc3585c4ec89a1cbe3e1e206bd0b71b013cb361c059f8f4ceac. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TWJK12200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556a45ec59fda77ed9785b0965ad123a010d4f322fc69dd618c505325032c6c2. 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/TWJK12200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5037054022a7ad012c9a1c5ff58014943f0aea6aab93606aef86640ea57b7b55. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TWJK12200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297b01d7678c850e8e18f2e8843d293885f5f0c1c8b566c2578553f5e7693a96. 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/TWJK12200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1706a5b74b068a5a06499e437579fd32ef648bae42b00f49d049e37b34a2a93f. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T09:51:54Z), 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/TWJK12200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccdaf007dab267adef417bbacb01c7bb82391267317cba41b75e8b799d87ad62. 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/TWCC32001200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc89d2d79660920be0964b0164b4e82a1850d6b5e2f05733d6068a5f4be71153. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TWCC32010220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8009632170c01481c8c23fc67b5272ffa698071fbfb91dc66db2308238fa21. 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/TWCC32008132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4c3f103accefb0fc00ebecfd6dea31c0d3b51e87a8515832235654e7bd1877. 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/TWCC31902528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2696353e41bc73ad09ade5c8ae4e691f5e2c95f9dfc4a99c2e7557269ce08561. 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/TWCC32200301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5a6c3514be057ae8e93ecf4a4d1b94a6573082fdf125e9c69cb8ba3ddd7836. 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/TWCC31800129.
老派約會之必要-電視影集《雙城故事》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb419dcc6ed479df70520167c0884f10310814b07f67432f15d328d7e07361adb. 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/TWCC31802202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723d1562c4771c8248d0b378e86ae58a3c7262593d85cc2c9f6fbb0311563404. 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/TWCC31700132.
你這個小東西 - 電視影集《雙城故事》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d306b567ea5f10fb96257f349b5c490778117b4c3722d753abd9d32dbeb415f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TWCC31803148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48524003c5c2de280c8ccdd1c5ebdcd7a1428244dd9da746ed9605adf28a50b4. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:11:16Z), 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/TWI971922401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2168716b63dbf08caa9de0cf4824daae2f3ecf59830a76f5069c365ee3165a55. 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/TWCC32122938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d656d3e56073ac909079f47302ae1123980225dc20c397cda2f40bc3ef38c1. 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/TWCC32009470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063b01b7602a8eca8dce142c297ccfee964487ab0ff614feeba5b29d308c2fd9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TWCC32009090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf874e1c45aee31b5e101e1908e325a54f6b76ef18a6eb2d1c706754614c4572e. 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/TWCC32005118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9399bb1cf8a59ff1d5a88236a24de133e3855fd743a56804159549bf098dd0c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TWCC32005119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cf0d87ae36f3a374b765b0e3b9087e80346741f1d9a7269b29591ac60cba55. 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/TWCC32009230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8302e49ebd20b3dea9e2acdd99d2708a8c16ed4d1c41c6d8545269d74e68b646. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TWCC32004102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0a95a42da0ac6fde3d5b58ade2e87301a9b2f12e0b17dc8f7c0746ae6cba93. 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/TWCC32009592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0bde57eae4377e2ff00675c68cf64595ef76f5f7ea1f76b80ac79709e925e16. 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/TWCC32009387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f32db1edb8be8c6f26576810fd065ba03a574d15f7276b53d534743a3b9e6c. 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/TWCC32004958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167ae5087ed0511bb727bc61453225337655e9d4e696daff74e585e57a7fe058. 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/TWP011741102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8d78daf9bd255f816eb26f0e11ee4f39a7128a8ff393ff0ff9a2d6bd74cd65. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TWP011741103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e61e28d3444480dd66cd8377d59f18595de4cbf3fbf25c7d68360b3e3289590. 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/TWP011620413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b2ac43e9ed28de4e8859f24156ef612ca3e11da4df94417439f98b73574ab2. 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/TWP011620415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8e81f693c39084822078a56a04919a96223f7cad480b14ba32724b88139981. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TWP011620421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f34dd1e9960ba8c76aef4207a12785aaa101eab0577d88d694692256db18298. 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/TWCT52539512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa267b7e4a07f836b8fa301c11a709650661737856190a3e554d0b0e5e0419e8e. 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/TWCT52539318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2512c51a82c0748cdc29a78ac84b7a966c9690d778dea0ed9f46ebf0bc02bde. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TWCT52438869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30f0ab0a7eecb81e92e0a880cc0be54026a2ed1783f90c0e1dc784e680e391d. 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/TWCT52438573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df806ef42660005c6dd866b07bfda5742436ee15bedb73b012b7910124bda1e. 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/TWCC31800219.