thumb|Artist conception of poltergeist activity claimed by Thérèse Selles, a 14-year-old domestic servant of the Todescini family at Cheragas, Algeria. From the French magazine La Vie Mystérieuse in 1
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 0xb7b17dbcc99d7bbb0da30507032d978b9a4da820f91d7caa62c6cdb3c77aeb82. 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/bc31045c-c582-4ccd-a720-02e9c1ecee9a.json and https://artists.proofprofile.net/proofs/artist/bc31045c-c582-4ccd-a720-02e9c1ecee9a.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 0x262477a7bdff6ebb0ba5331ca7e1d09ab659bc3da365d712548efb139f6b8e62. 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/TCJPX2384307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73476a3cc65c1f53aefb95d1a886d9b570bd819379d415cc79d5855e603c532e. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/TCJPZ2419454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9856450f68865c9753cd18176231dbcaa206442d38755376695c96f4d655ae. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCJPZ2419069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764cffac83b5f4e283c0fa05e45af87ee27546ed6a400db8115060d898602b43. 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/TCJPZ2489526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abd21b73fdce4d5ca93e5479187abe5d371ab30f2b8ca03be968794f8f30ecd. 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/TCJPZ2493123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb22fa4108323e1f23783c7526ebd6bd8546aee170ec77a25c62ae686f9b41f. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/TCJPA2418165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a958ad78ccd96db5e34459b009112a029891b996024daa8ae59fd294101819e. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/TCJPA2444737.
死にたいって脅してるんじゃないんだよ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07266f66326ef6a8b43630bbabcb05ca9c2d15d8674c988018a781443214a338. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/TCJPB2400545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e813e1eea6f1f622c7e1a8a7dfe0ee070436b586f7ff6f7ec3d4174bfe68489. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/TCJPC2401570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23606a89945a446f53d7a05bea377833eb36d989a1f1770a58101f2c6978abf. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/TCJPC2401545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fe68eb4446ec81ee500f91a2fa0e273e2c1cec9f649192188692174c042278. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/TCJPC2401596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e24f0271c5e8902dad96140dcfb048442b28581d539ad7cb871548b812e2601. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCJPC2401601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0c39eb8a0f6c8c4e28b900168c155f5b103e26a779c17443ee4364d8cd8154. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPC2405429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9df463e0c718d051a3399c91b9cedb99273c3581771a23d0a69998677190c6. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCJPC2404288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39612600434d3f7c2d349be23d87216959c45ed7b5695777dffd2bb2de74901. 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/TCJPB2475733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e6532fada79d87e29216b8c6673fbdc0b5b04bf0ffbc61d93826578be2f7b8. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCJPB2475736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe726ebaacf654443dcffc09f22e850175033e15e5e5785dd6ba075f2b18e02. 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/TCJPB2475739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e0e572d22fcd65bff90d5b83abfa712d6b9410d94e01389ad00b8ce4e6625a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCJPB2475743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d805d274bc2aa8a0c324540bd45d0bc682cc593a1bb1f4f62fa1a5e816b51d0. 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/TCJPB2475745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01c31038a98c91f8f61c542f26ef6614bcabdf595a27baa9124afbd812e370a. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/TCJPB2475747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f4fee975e753c65c25548e1804350265976fac58f955b4a8b37bd003e338ab. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/TCJPC2403071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02fe9a13ed1363fadd17bafd4692733e53eb6421e5c8745956765a25fb9e7ee. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/TCJPC2403076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbeaf683745fba12765517f0803ec8d157c55f8dfe29c4e6ea0002f94934427b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCJPC2403080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2eb5610bebd9627db39da04e727037b9be76897560c1dde19bf7b2e64a433dd. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCJPC2403083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737778a5e54aa05266d1ee69ce229693dce05a26bfc511a535bece1a53949485. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPC2403085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fc170c7889cb53389aa6b0342896a9c0c5ae15676eb5c9640951770ec855e6. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCJPD2410488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d514d00477bcd7d6caf6167b0ecbdbe275100122cbe8b2d8e7936b3e24dd695. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPC2478484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2b95f2e372e52be6c0c4a6b8bed9ba2924c7a1de5ae9a2c2e7b726ac2f6539. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCJPD2598340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cace721e00e64df40ca251df8d6062c1d57fbb3234bf6bcc338d25dfbcc5d2a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPD2598805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d3e7d2129617f125c995e12d5c18ecf742e17ff55c4cf432b3b91540cdcdce. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/TCJPD2549341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39d2e235dbb0cb7100b9499c08ff7f3e5b3c98962191ded0e3b36f3bbec04b3. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/TCJPC2478475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48332ced1032148e065372b5bf3b3277525a1cb70798b7b58f4875a6e9d98e9. 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/TCJPG2545111.
Hurry come come! -sachi, sachi, sachiare!-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310d992a962eb32af66b3211752fb3e15e1fce29456e5c784499d0c7ec01e3b8. 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/TCJPG2561524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60ba046a1d710d3a61ae83bca4152f9229162207a3780d013d349d4eb9eb8db. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPG2596046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bdf545acdc1fd5ab633b130ca1fa36856a872b4064a1077f7f3164e1d4c5ef. 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/QT66J2574420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae5ef2aad26b9594cdde3567d17c8abdb86e3f501cb4e18c03127f4dbe21d514. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QT66K2504224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5939ee8dd104df14c79b7e9fc909d43b34f6df6f02116f6318cc006675a1c7. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QT66K2515536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19ee4c618b108d709de5de94b7625ac1dbc5b455d629de3f7ff164776c10686. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QT66K2547183.
ぴえんぴえんぱえんぱおんぽよん
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890e7584a9f4487a49f47c59af48af04bd6c4f74aa5f8c901e089bb8d13597cd. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QT66K2555097.