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 0x76e7262acf9713c0965dc24fabc31f7ba52f4eecffb34a272b20466fcb2b7198. 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/82b5856a-d621-4df7-ae65-3ec955095f7f.json and https://artists.proofprofile.net/proofs/artist/82b5856a-d621-4df7-ae65-3ec955095f7f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Konzentrationsmusik für Hausaufgaben, Schule, Studium, Arbeit
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 0x3e6ce3e498b0c3129a9151f7f23eec366ce85fe57120ea54e9a4bb828ad06302. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/CAENV2404502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcf37bb8d34e6121e64828aa85f305c491ed0fd613ebe2d9fb69f9909896c14. 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/CAENV2404503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dffabaa1ecebfa959f6da5642d03b91d3515ca7c634bd02b2e9f6ccd0533497. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/CAENV2404509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b09138c8e228e9a2f7cb126fb12a22c9d63be0cf7a01d9920af1a796f1e6bdf. 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/CAENV2404494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf7dd8b669be48afc82fdc2b98b2bd4e448f0447dea04cc90d658be929582fd. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/CAENV2404511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f14e78e340cab832e399782281cdb14862bc5590cfbe1b29528ec7b18a5f38. 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/CAENV2404510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70396a4f99acd75f91de7ebacdef2cd2fc50ce06ba1d3d19241ddc7a0e18b87e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CAENV2404491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23a0e04db211436a1d3a6e2a1a9ca7c9b4b6841111c5426ca3db3f6c519e5a2. 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/CAENV2404508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff2575dd6c28341bfccc410438fec751996e8ae8cdbdd871ea0a2651e9de3a7. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/CAENV2404490.
Musik zum Lesen, Lesen Musik, Hintergrundmusik zum Lesen
Hausaufgaben Musik - Entspannungsmusik für Hausaufgaben
Study Music - More Concentration and Focus when Studying
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30cff5e426da1db4d7164bd3afb50a2229572898bd672878b1fc634db075032f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB72453579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730029809a594409bb5268f37a987e74fa81b66b484142790f4d7cfc69e1f8c5. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZWFR2480248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a1750801bc87d27e693093a7ab1ac3b604edd4494cd9837e2665eb293a9f49. 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/QZWFV2469871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e42f2444782f9d47601f0da4b397cd4819a65e192b2b72798f5c7143937c02b. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZWFV2469875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae28f8d03499cbcfe6c9c0fe2d19676da5b7557a374b43249f019e90a15f12ff. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/QZWFV2469885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd050b6360e1267989309286f9f5c07d0e76048a0a1c39ae593da34b4b19ff758. 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/QZFZ22572890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3207c93b44beb9b57a93fb52b63fefa1a58ad10bb0855905b666b7922faf45f. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ22572896.
Study Music for Concentration and Memory
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e891748de7191a9d5d15b3a4f45dd7e46e1803a85b7e81381dc1ddd13b5afb4. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QZFZ22576089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff9bb7b00f5e83572807089b13ff0bbc3594027ea13a543ef9ec51d1f297c4a. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZFZ22576094.
Study Music: Alpha Waves Improve Focus, Concentration and Memory
Study Frequency for More Focus (Beta Waves)