"Planet Caravan" is a song by the English heavy metal band Black Sabbath. It was originally released on their 1970 album Paranoid. Overview Black Sabbath's Geezer Butler – who composed the song's l
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 0xf3c3edba48c3a0438a6af98bc3747096438f0506dc2defa8a05590113121b704. 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/9de17468-2288-4243-a69d-95925dbae40a.json and https://artists.proofprofile.net/proofs/artist/9de17468-2288-4243-a69d-95925dbae40a.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 0xd0868bce13e869f07ece07d544f39da2a92c51cc546ecc59789e03d1d27310d9. 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/DEH742211133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec4c0f3a20af93ba2110e64f0a53cd64ef8f869466dcc0f2f626c3eecdc6fa4. 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/DEPQ62101172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d92f4169412adb55f5dbaac0ef717d45fcdd20241e8e9b9b5d28b748b81a65. 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/US83Z2222894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c041a9317bc780d0803bcd00514277db7a1a86a4e89d75b0a2bb3b9238a854. 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/SEYOK2161564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc490b5bdbf66cc2a1483d99366d3983058d520e42b1a1bc975d7b63b44284197. 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/DEY472088513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x820a25d7808d56000ab4a15c72ddce78cd79ee5ac5d19e1e62d595ea6f963a96. 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/DEY472088515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6b798a605f13085fa645299b029acc40a9025dba6053f868b39a509c62d8c6. 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/DEY471819142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7da9a7303fc29a868422f0b102daa7011f8b0741dcc2024b2e06a504c651c41. 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/DEY471819139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c3776ddd7bb12d8f5041b10eae5e1998b39d686d21c9df244640dc1cc983e0. 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/DEY471819141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9725e95c4f0e84282f2e6b42be6e9d3da71e9ea8be7de45ff6357d18141945ff. 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/US83Z1921925.
Kalbhairava Ashtakam - Aroma Reinterpretation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db383166cfc834baddff33ec50945cb572d8f853a3d4f4849fd9393eeff97a0. 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/US83Z1921938.
Under the Surface - Planet Caravan Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1116683987b8a656a6a51691991e32968d00912edefd0ce7b3651018d9c5073d. 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/US83Z2127989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b10b200e09a2dec97e1396f9fef17070af1b1064bdde4c0275b836b6825b4b4. 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/US83Z2049517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc35efbb5dbbdf4d8e18addf8beeaa1254165f3be57182b678ac56d8511a72fc. 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/US83Z2049518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3045a90accc1217167482aa7a7b4d70cb495144a1bf8bee5af60e0ad0986cd. 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/US83Z2049520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb347e3305def5db489761d5acb9fa88e08370e2248caa16413c2d10178aa84b6. 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/US83Z2115573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320ec05bbbb126f41bafd1a69b3a4d8c03e79ba8aa84fbf330db145ad2fe54e0. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/US83Z2115571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb36fa52a616348ba3af775989536bc6bf042448b5718fd7f09a0c37aef60e47. 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/USHM22061656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7adde5a9faa2322d09a4be02ff8f1498758406dd54a22b0699d51680cf8ff05. 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/US83Z2047117.