Reverse or reversing may refer to: Arts and media Reverse (Eldritch album), 2001 Reverse (2009 film), a Polish comedy-drama film Reverse (2019 film), an Iranian crime-drama film Reverse (Morandi al
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 0x8cdeb2bf1d4de9fee6b6a30f56685983f367981c0cfe6498544fdaf599276fa0. 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/cacb8895-9a25-4f95-b458-4d3400233a25.json and https://artists.proofprofile.net/proofs/artist/cacb8895-9a25-4f95-b458-4d3400233a25.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 0x4f946eabd2c0397224b9bdae124f2f5a6caa531ec53aa8797d054316b79dc378. 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/NLG661400457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0888c98bd3249dcf96bfa6664375ad60be9258f734b396abfa6fff315481dfaa. 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/NLG661400458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4a9071a5f453e125aede303d4f45d42b0b6c49ad23c364f2e0ba15540bfe9f. 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/NLG661400459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3282886752984ca69515899d1d4374a041289cc70e864422ff9edecabfe53c8. 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/NLG661400461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82ee0b11e6c80535f0f8e1692626f46b69148bd969e122e9666bfaf940654c6. 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/NLG661400462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1289d7d85e8b26b0baecf425640edeb79e02d4cd785a4805d95861052cc7237. 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/NLG661400463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5383cbd424c1e9a24222125b83172e81a1bf27275b4bd523e7b562e76c63f5ec. 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/NLG661400464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b9f6f1af5e28d12c51bf457525206ee4407a4b2fb7383af6ef0f7d9ed8100c. 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/NLG661400465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595c32a4a8b90c65d28adfc8117b9ed30f2907fcf7f882ba5103136ace867e43. 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/NLG661400466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6111fd20ab10b169bd4c782b4e6c0a4cf96b953290069d4c1ac407d5d45e5690. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/NLG661400460.
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 0x9e60c3abf096669c57eb00f4f964c6ec95213faae493234f5557b743202f10cd. 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/NLG660800117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bb0c5737852de29509111d2cefc7113675834317d65f26db1ccdfc98fc6879. 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/NLG660800118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5decf2bfe6bebf2f6a9db8c06a1b1c72b0f9c71ffdbe8f09054b7a958f7370d6. 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/NLG662200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bd2ad1443bcb08263f25d7d8822304f07a0c61b9c4525bb0a035ba9199d55d. 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/NLG662200078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52f8dbfec281ed3a2f45baafa125834ce8c843d8fe75fa114a9bc64fb6d7729. 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/NLG662200079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223692e26b2e9d097e5d83238d8e4253d730035cebd52595478a083be098aaf4. 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/NLG662200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e3ea5f7af1c9adaafb394ae9eacb16f79bc08fd83d719c764945d330177be7. 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/NLG662200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567761cef8812a8d4aa8f535867d54c2c907a5e4f20ea017b200ff4c93ed3e70. 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/NLG662200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbe621ed802c9bc5292416e9c8e7f9577dbe04274187152364fdfcb9b292843. 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/NLG662100578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a162be86d8f292c4230ad659d67c2f0f78b185b5ddab5475464d0725183ae79. 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/NLG662200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0729371656bc80d01f226ed741435d386530258918b0a6eb05aad8a50e78a34. 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/NLG662200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa627d2e683deb4c1843ba6656aced0223203e0dd707e31235c3a4870c02f9773. 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/NLG662200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5da0c172aec0961816f49d5b0be3399badf1a737466f5a560ce78a7d560c92. 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/NLG662200085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb060044cfda70dfa119f67d92d659732a7852b15b91d499c5bd0e417f8f989a9. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/NLG662200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c2c19755cccdbee3d65ab7660961e75327405dc619d87d533057780d23b5e9. 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/NLG662200087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbe621ed802c9bc5292416e9c8e7f9577dbe04274187152364fdfcb9b292843. 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/NLG662100578.