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 0x71c938c89ebfd4f544d3a1c38084df508c9acd7b85cf0d53a3b9909e49046961. 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/23d8e940-70db-4932-aa0c-927e7bc2280b.json and https://artists.proofprofile.net/proofs/artist/23d8e940-70db-4932-aa0c-927e7bc2280b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Einschlafhilfe (Baby Einschlafhilfe für Neugeborene und Säuglinge)
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 0xee45c13f8093b4844b508d779e406d711844970a765a047563bc8d62c1bf5190. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42300382 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9a62e0ebbafabb3fe038a3bf3b2ddd590c678a5683ee9cc1f0bc31c67c915e. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42300383 — a six-check JSON result.
Statisches Meeresrauschen für erholsamen Schlaf
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd206018b3db80d19a5c914209ce2f5088f176a78e386a31227e6a5037b3ce596. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42300391 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24f2ad3917f10411cd0b6baace43dbc0db7c53dbbaa3fea04a14d8fa8fe720a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42300389 — a six-check JSON result.
Endlich Schlaf (Einschlafhilfe - Traumfabrik - Weißes Rauschen)
Schlaf gut (Der sanfte Weg zu ruhigen Nächten)
Pink Noise For Active Kids (Einschlafhilfe für Aktive Kinder)
Calming Fan (White Noise to Help You Relax and Let Go)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2543f9cd33e368e1a8f11aea168f74149a942b81e4d4ada9ed64053fad065eff. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42400063 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f225fc0fa443da35f9b99e324e5a8f4d2e5ce4b4f8ff229299af8171e23b1a. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42400065 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a808cc6130f49155210dbe102b02b0bcea1ca18b70e7374630ea9d765bf299f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42400066 — a six-check JSON result.
Ventilator (Beruhigende Ventilatorgeräusche für Entspannung und Konzentration)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f09f643846186cc41d5dc83ce946127beab83854082784427f2c15489c23a57. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42400068 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fee5f312cdf663d8a115e329b29d1c3af5311ad19c894872642609a550eae6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42400062 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3100ea29052aaafab457053e6ae224a670d6dc92efa5ab281e1f940e59130d60. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42400067 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a808cc6130f49155210dbe102b02b0bcea1ca18b70e7374630ea9d765bf299f. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42400066 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15159cff0fe90af54b12bc804d543d51d701aa8a8e3729feae3cddd32fafda0d. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42400064 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2543f9cd33e368e1a8f11aea168f74149a942b81e4d4ada9ed64053fad065eff. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42400063 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde785497addd47b13154df804f2affd8a1afe6e5eec421368ba72b1388b4e2a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42400046 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d41eae69a8efbf27141f6ad7e4392269456664b1906674c709eb8103de73d13. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42400039 — a six-check JSON result.
Meeresrauschen (Das Flüstern des Ozeans)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe587588d42eaf53cf026c31ec1a8956cc5f7fbabbb7b451dd38acdc77cce859b. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42400103 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f552cb8308d5b2a6758ab44efaff223e92434ee401bf12cd6acb006f7b38fb0. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42400105 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8207b0579d5d366f09ffc5f560874f8cd7bd888e563d8ca54f344f621aeb79a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42400104 — a six-check JSON result.
Seelenruhe (Emotionale Balance durch weißes Rauschen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244f2fe66664c71961d9c057584e1a216a8cb72017df5101a6d7ce7075a57e2a. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42400130 — a six-check JSON result.
Kühle Brise (Ventilator-Sounds für Schlaf & Fokus)
Langsamer Dreh - Leichtes Rauschen im Raum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe829b90188b8e8edc6ed7b8e951c2803f62a36dadd292a71a655a4fb5af8ec9d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42400219 — a six-check JSON result.
Föhn (Sanfte Klänge aus der Welt des Föhns)
Die Kunst des Trockenblasens - Wärmender Wind, wohltuender Klang
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9938d9d794a1e1a09379a1833026676b4697eee25e6d4ada2a1dfbfaf449b7. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42500006 — a six-check JSON result.
Der Atem des Föhns - Wo Rauschen auf Stille trifft
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6532c8626034cd267a02c1efdf94b56f8e0e1dc639702ac390074879261aae. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42500004 — a six-check JSON result.
Flüstern des Föhns - Die sanfte Kraft des Föhns
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d24e002f20001e0ee4a832e1c34ce3cf24397aa031c07e05edddb80a6111626. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42500007 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3431c169e9d14999b2b8f7d43a6400f6b51bcdb25be68957c9731c427c47459. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42500008 — a six-check JSON result.
Heißluftgeflüster - Die meditative Seite des Föhns
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bc25dafe80dc7be06bfba06c45eb9046e5d406602922e21bca9bcc172888a9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DESX42500011 — a six-check JSON result.
Geheimwaffe Staubsauger (Schlummergeräusche für süße Träume)
Schlafzauberer (Der Klang, der dich in den Schlaf trägt)
Baby Schlafhilfe (Sanfter Schlafklang für Babys und Eltern)