Sir Charles Spencer Chaplin Jr. (16 April 188925 December 1977) was an English comic actor, filmmaker, film editor and composer who rose to fame in the era of silent film. He became a worldwide icon t
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 0x6cbd98db4ad076187b6aa6ad648d02f278ec1593085dc5013926abfc269d8e9a. 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/679ab070-3aec-41b7-a3fb-453c8b5db4d7.json and https://artists.proofprofile.net/proofs/artist/679ab070-3aec-41b7-a3fb-453c8b5db4d7.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 0x65534d67b4eb74cd2d6f44e43af3473b6accddc6a10df603f3602049884edab9. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/GBAJE0608129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50cbe268e3c077bff19ddeb89a4f13b23d83d704208a393460e23f7d074c9017. 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/GBAJE0608131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e33f50fde8438aa0e17af1e4b71de2a0b833d393bec2020dd48f752e0bb718. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/GBAJE0508792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd396f0318b7e76515a5b4088c8658be522320448f6f197e963d2e4ead2230596. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBAJE0608134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375003fe977af615e8c996084accf1709ea8f81ad677d025fec063828732219d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GB5KW2301855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0b7ad92342e137c9e96c11d1b4b5a00724f86982d212efa2c67282e46c6f46. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/GB5KW2301856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7929c402a2d41c9b44fcf0bbdd795a8ed9ecdfaa10cd8c2430d2f1e31daf6c. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/GB5KW2301857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c1546da386bb07192ac2890c278e59393f0f63e0dab3307b754ab4eaec895a. 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/GB5KW2301858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9f72e9a45a2fa9f30a401abcbccde0bdcb7b02272b3c8a6b3f290f788cf395. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/GB5KW2301861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171692791fad3a7e9ff45f7257fce8897c59632674d6580ab3e51b167bacef31. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GB5KW2301862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c7e063de0ac7b32b28c1c26d0e5d8fa49841ef41fd29269a0dfe770d384405. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GB5KW2301374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d895258b55e06addf0944883348910afb5b666bda1ede26e68a2807bb5217c6. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/AUMEV2236804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd762c844be80039edec7d95700e84479fa7ebec1650d04a8ffa60e0a052cacb2. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FR0V61205215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064cd38773e728916ab4dda949937870f1e1b131efeafc75ed598fc8b33dda1b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEN961800830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e40906d61fe27c09a38921d7f6690deba26024acede20c31de207cf708f5d01. 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/GBBZV9140689.
Reggae Anthology: Henry "Junjo" Lawes - Volcano Eruption
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890272d6bdd6b3eae8688ac1710b084b907c9672be9aab8f624c019aba92a779. 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/USVPR0916299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3ae146bdb325cf7bff5b39e155df72e5fc0551c055538ecdd3b7df976d933b. 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/GBAJE0501346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5c3a74359d6a0a8548e25729b2f88c3366d5cc8177fe25f59d85eb2867e96e. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/GBQQZ8413013.
Jungle Cakes x Trojan: The Remixes (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10f2e46ff6c5cc2c135378de8343838ede8489a1f12367d5521cd3656f08a96. 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/GBFG92100348.
Jungle Cakes x Trojan - The Remixes Part 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62a005d4dbf3b25b331ae8ce66817f3ff9d8e9e1b2e644ed29c635ed14cb4f2. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/GBFG92000255.
George Phang: Power House Selector's Choice Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1003e66b72a5fff3c68fd76032f00369db564868929d4f06f6021a9a21939890. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USVPR0814409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39fd105200af0816f4fa1d91805b6e89302433e19a76a67ed14f2faf9ffdf26. 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/USVPR0814412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1cd75b6496ad3dc1f024f18c70a1ed2bfa282ea8e18a247bc140c37575cdfd. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USVPR0814418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20af635f0107645da2ae7871e3c2cc1744d88b010c80202347d407a25b6696fa. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USVPR0814424.