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 0x42d839e1f66b485771c72a91ac3dd6f919864d848e5fac7a3e5cbe5099f739c0. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd44b67c-32a7-4fcd-91f2-99a042308ec9.json and https://artists.proofprofile.net/proofs/artist/fd44b67c-32a7-4fcd-91f2-99a042308ec9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Es gibt nur ein Berlin … Die Lieder von Willi Kollo in Originalaufnahmen (1927-1946)
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 0x57461019723e70b05a174c2d4fa93ac0a17c0421abd9ea9ae2a934f30f2db9f9. 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/DEL111301212.
Zwei in einer grossen Stadt: Zwei in einer grossen Stadt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1e24f2ea55f16304874f12da191da70af4180eeaf92eb784705d4616986514. 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/DEL111301216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71ffa90c53ac13bf7e101a758dfacc98a7a02347238d2bbcd9cfc3d8a98921d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEL111301218.
The Golden Era of the German Dance Orchestra: Wenn im Tanzcafe Musik erklingt (1934-1942)
Bei zartlicher Musik … Die schonsten Melodien von Gerhard Mohr im Originalsound der 30er Jahre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf39b8e5d1b0905636ef2e8cdaecdf9cc098f2ce232a52f49746686c4382bea. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEL111200771.
Ich kann an hubschen Madels nicht voruber geh'n
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d8efe512d3e0bfffb2162cca4a7692d73857102f0027867c74d30e6e72a5c9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEL111200781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3392aaa6f75d936903981e17dc438fc1b131a98daa822c49af328f3d332c48ca. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEL111200782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6627764b74025448b0d4e4d2934becf335da3ab53f62f978fc9d4551d3a81566. 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/DEBL60774686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01efd1e20e11048c7533db81e5b17486b53e0ae55a0ed94624fbe0bfbb29876. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/DEBL60774676.
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 0xdd4400fab20ff7801afed0c746f7ee66158f1d282c6402ae8f8e02902dde048c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEBL60774680.
Hans Rehmstedt Und Sein Tanzorchester Hans Rehmstedt
Schlager & Swing Hits der 20er & 30er Jahre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564171bcfd16440f5425249c839ddaae2e06ebca88f6ce4a14e23b5d1349d415. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEG320701206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed577d176e8901faddd837ce8fe0258f26e7a6beb002d0b217fdd62a9954fb8. 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/DEG320701208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019daf3aeb819efc48cdb5e9b384be1bc18199215fd0de1db057e9641499a0e0. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/DEG320701210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ff044623385152f88c1cdf8713f04a2fd8f13d8480e706ea5f9d6341ab3925. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEG320701212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f74d8c1aaba922a063f97c4a9e5e256110d6d07c2c01f2d164330f00212053. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEG320701213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae36f39db248556d2b2fc3affcc38bffc33aa8dd8cfc2fa540bbe3db4b2ba51. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEG320701214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94fb1be6091eb4364037ac422884daf37a9814cf28e2965e77c2377e7fefaa8. 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/DEG320701217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ba5010c382583e4286196a363805a9de79e516a614e482f6694b066d3e9acd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEG320701220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc5fe5910ea4a6a11adace508ac222358ced7b76cf3f3d7daa0b29b16cf150e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEG320701221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021c35a0678ddc3da408418e5644c33f8a9ed9d6d1b752a4b49fe8532d3043af. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEG320701222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a60506e399b9454f39fc467e7de96e8c21a4b4821c1b008bbfc407a44c5ed60. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:52:26Z), 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/DEG320701223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ffec071b14690905c14157c0cf0bd94bcfd40269ef69d6cbf62c81537a7d44. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEG320701224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee1ce22d15049313dd04585926e9f5930bcbc167dad30532d38c20606e8d55c. 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/DEG320701225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5562719d6917eb66bd201b5dc61e2b3ae4ceb7a193fb05566cf86f3722986306. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEG320701233.
Die Nacht ist nicht allein zum Schlafen da
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dea92e4eaf81ccc169026f790a8841ad37b326d2c46b0fbe3f59da2897efb9a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEG320701246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8b599ae191bb30a70911545c26009322717fe66c7f64d503bbd32b04017dc6. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:28:58Z), 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/DEG320701250.
Ich mache alles mit Musik (Anita und der Teufel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf597cd7749fa3a80f0235c991988e340fa47b23d7b8f6dd696510a51d549aa26. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEG320701252.
60 Hits der 40er Jahre - 1940 bis 1944 (Das waren unsere Schlager)
Ich weiß, es wird einmal ein Wunder gescheh'n
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe068e1c6e3602d36d4c4f3ac7881632d8dd20eb27f1e991e232e74aa9e4cfc49. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEHB51206900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca76f53a3e92a0c5974dc0d3b41ff1a5b4de2b958647ed3a83e4b55c5120b2d6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEHB51206712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd745de7a1c6aab8283e360c02c0c88af7a3e119a571b78c7e6e7da1c4dd949cd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEHB51206904.
Immer und Ewig - Aus dem Film ''Liebesgeschichten''
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f5943af1d2b86b7bf1215a6de46c3939a54daaa051a17e4984fe9267c9d7d8. 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/DEHB51206753.
Musik In Der Heimat (Music Of The Home Front) [1934-1944]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf612bbabfc8649cb0af8b47e340e28fb22be7fa9684a7f59a887e04b24db8a30. 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/GRHR10987803.
Warum Weshalb Wieso (feat. Rudi Schuricke)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055b3e52aa707cb179c536dc241233af14585005a960a039ddcbae1dc66eb2c3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GRHR10987804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c36a322650c5ef99aad8bebc5160c0b8e1768d70aa141e43009408ae1ad5fa9. Chain 2 (Bitcoin): anchored in block 957013 (2026-07-07T08:31:11Z), 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/GRHR10987808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c738fe04f8ff57fafa1fdfa999cebf3dd104e032aea6cf263a641e500fafc3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GRHR10987811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d4192c51a2837d90a6d9e47e752cf099fa794a41d7212c6a2e49fc33f918ad. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GRHR10987816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaaa3d4a834b2b34105711df5af02852a071a8ab260f65454f8565cc6b3870bc. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GRHR10987809.
Tanzdielen und Vergnügungspaläste, Vol. 3
Schlagerperlen, Vol. 1 (Die schönsten deutschen Schlager)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659a3f92bb84e33303497c7d5e986385d59b79a68d69a553db3cc687483ccf15. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEHB51304400.
Berliner Tanzcafé (Das Beste der Deutschen Tanzorchester)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb3aa4f03da243f5d8c377d9a418ffbca5da218ef615192b2082244b8ef8f0a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US2Y30710387.
Swinging Ballroom Berlin II - 4 Reisefieber
Tanz und Swing in der Mondschein-Bar (Das Beste der Deutschen Tanzorchester)
Modern Art of Music: Ballroom - Foxtrott
Als die Hits noch Schlager waren Folge 11
Schlager Rallye Folge 6 (Titel 1938 - 1951)
Als die Hits noch Schlager waren Folge 13