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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb106277c2b1195a189a9d88c563c913830f0f4357e78ae0d2c184e1d38afbd87. 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/82764651-0337-48ca-92bd-50f2a98fc0b3.json and https://artists.proofprofile.net/proofs/artist/82764651-0337-48ca-92bd-50f2a98fc0b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kinder Weihnacht - Die 30 schönsten Weihnachtslieder für Kinder
Ostern für Kinder - Die schönsten Oster Lieder
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec47b9937f5cecc9c5836d663779f1a603cf301697a68a26c23a4129493df9f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/DEMF31100329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb76e8e9502935650d88eb5548efe6ef3bf6b691a564ea1b4546525899d03b08. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEMF31100328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6d915f67eba670ef48dcbd4a68c2b4ff475f51bf72162d0649c407c6e3bad7. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:54:28Z), 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/DEMF31100156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5aa84fc5f644125b753fe06d5615bde59fe8e06c0a5ba3b19388297824f74ea. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEMF31100146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627db11b9a5981451569070e6f11d59fa6ca6bd1a5ed2e79fb5f7823c0a6d975. 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/DEMF31200336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea4c660b8f203c4572a7e18604613888b7ac81d7e63e638039cba5e2c0dbf0b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEMF31200327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799659bece12bbd4e60d8a1e3673ed19e9eb66ef8ae04420366d06656ba652fe. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:36:53Z), 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/DEMF31100157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e67b513d2e6ccaa636977f9a596b88464bff1d56f50e3a7d262bb341fd07a0. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DEMF31100377.
Turaluraluralu - Ich mach bubu, was machst du
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f868db231a833a4196422da33ff10b9e70b5b9843282050175b880060d38088. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/DEMF31200329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf94a8b51015f6b8e5d0a45e31fe071686fa5640ef5be6fce915a91b87315d80. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEMF31300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3c1b24a3fe2a72341f8c688b0d0d05bff0fd6fdbf8e1c23c5ed05479cf1baa. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/DEMF31300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdeeb83bada7429ac72e66b351a8113295286314e0c540d02323d7f39384234. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:22:48Z), 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/DEMF31200331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20d3dede937009b79a1a2601ebd3f0f522e7bd935dead0376d7c1d8528ba182. 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/DEMF31200335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475a2ee548e6717f5152f1942fd7a87c4fdb9e29c2bcb7963c57d0f99ce69ce4. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/DEMF31300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade4312eebe206aa900112cbae9afbf2516e6d48cbc1a14e4ebc3df0098354db. 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/DEMF31100131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627db11b9a5981451569070e6f11d59fa6ca6bd1a5ed2e79fb5f7823c0a6d975. 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/DEMF31200336.
Osterlieder - Die schönsten Kinderlieder zu Ostern
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c43edb1417289c31878c85dbc26590113bc935a6e3450643c2821ca2e9ba75e. 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/DEMF31100313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec14b6e5ec83d0bc46f6381f944bf2b393ba6349eaa3aeb97c7fa3bf392ca75. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEMF31100149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6d915f67eba670ef48dcbd4a68c2b4ff475f51bf72162d0649c407c6e3bad7. 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/DEMF31100156.
Die schönsten Spiel- und Beruhigungslieder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33590c14f32e8f6f57bfa31a9dfcdfe11499c0f751f17f0bfaebfa4e6720de62. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEMF31100374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521b383bb013470282624be3024ceaac47689e3d76ec283f5c309a275b78162c. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/DEMF31100369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf9f000008ff4a64476d3355af87a61b60e7e25f60c52c76b23425025ca4458. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/DEC711624425.
Die schönsten Osterlieder und Frühlingslieder
Die schönsten Herbstlieder und Laternenlieder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bfd2f4fd0cedde5b5ad2a1d252616fe9d681824ddad5b7215882bc31c0d9e8. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:22:45Z), 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/DEC712002843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4ce882715c0046b4d1bcb16af06fb5ee1481c465b88acb892ebc7d55896175. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEC712002844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d5a0dfb874d5852532204125b43bab04b4912f16d183cb87fff1827b1ec150. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEC712102543.
Kinder Weihnacht - Die 30 schönsten Weihnachtslieder für Kinder - Teil 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd87aebbc69b7c0d7c99c2d8429eed3f773b55a9292451be326a4f32e93579f0. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/DEC712205345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf971dbcceb6ee67450fc3870634b5dbfc3c90057dc912633ed019afea38041a4. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:29:16Z), 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/DEC712305044.
Die schönsten Glaubens- und Kirchenlieder für Groß und Klein
Das Polizeilied - feat. Kinderlieder Gang
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d65e50aecdc261684bcdb5e90d3fa6632db7921902342fe3b882bc1f1ada4c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEC712305040.
Fünf kleine Fische - feat. Kinderlieder Gang
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624cbfd86f6c663c4a9ead63ffa00b31b36e7d2e2e434f1211ca96a4c0939332. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:19:33Z), 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/DEC712305045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb164d08a0ad9feb94a4460904688b7eb2d35556750f57af21427ee5406adc1. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/DEC712505762.