Amsterdam Klezmer Band, sometimes referred to as AKB, is a Dutch-Jewish musical group created in 1996 in Amsterdam. The band plays Yiddish and Klezmer music, but also incorporates sounds from Balkan,
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 0x5096f9ddc0b908f98bb55d6e1fb48c8c456bb99f0357e726e76c6c8fbfebe871. 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/9e8f32e3-784d-4fd1-b9bb-4c3382668aa4.json and https://artists.proofprofile.net/proofs/artist/9e8f32e3-784d-4fd1-b9bb-4c3382668aa4.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5aa0dd3e9c58b26df3b6c72c4a7ee4eb838262baf74e73aee521bb02111c74. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:29:41Z), 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/FR10S1910657.
Der Terkishe Yale We Yove Valenstein Nigun
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39cbf24a439347862048e1bbaa536ce4b2af9e766767078f079e7f5976f20847. 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/FR10S1910658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e4685689b241cea66deedb6f3fa68eb4aa5f19a2f6ca2e4b2214bb43ac49ff. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FR10S1910661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932f78b26267be1e9d2241a801e3df6a9c32aa955be319942b2c8d580acae7da. 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/FR10S1910662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97887b0b4fb897bb23f759a8a336b7bd8d84a17abaa73e33162cef16054e817. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FR10S1910663.
Man Bites Dog Eats Amsterdam Klezmer Band
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0a26680b8be4406e86f6473ec0d1fec444c983630e5a80d68e53a888226fbe. 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/DEAZ20500066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81ed324eaad131d56e51a5c5ebd82ab302bcb5450c118eae48a4fad25e0431c. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAZ20500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95352c5da623337e11b2a584f550d1ed920237a31e4d6a71711b0d10cd276809. 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/DEAZ21000500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac19b4ae12eb2f13262991ae2ada353a5c4c84f3a93a24af577b889ce9766815. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T16:04:37Z), 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/DEAZ21000504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f14770d62e0a36a685ce976ddc2e5861ee58d871ceeb394c3ef6530dbcf2b0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DEAZ21100563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbd15233f043774432a914830ab24c6e08bbbf5113fc667d3d40fa330a36f19. 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/DEAZ21100573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c804fddb15e3008b863193c096b3d809945cf0112b6ba36cf49f79cc268844. 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/DEAZ21100574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7c1255179ece46e616d4295c3d1d609ed40117314670e315857590872550d7. 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/NLB4D1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4b17e9e753d563c705e38af0306547c4f6c806da6e7ecbf12600b19552f452. 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/NLB4D1500004.
Oyoyoy (Babylon Central Version) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433d669d03d06d0e135be22be2953e2624ec4ee6e63eeeee8bcd9da181cf7e16. 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/NLB4D1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0160e8965d978df7a93c11c5525bba1e872fb0f8b3f9fd9dcceaf270de849a8. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:45:15Z), 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/NLB4D1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf39ebf52976a86399f9c4d06860f455375fa5ef1377d44f9e2b3f87a458bd23. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLB4D1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57374ba0a33f4b909a8287a9d4638be2e5bc24d4ac03e634be275997b383a36. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/NLB4D1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b8671f84283edc048222322219613edb3fcddbb85430e3a359fcc3aaa2e1a4. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/NLB4D1700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe693b6edc8e227f68d2b2b97301558b4a78aa0c4425fd373f07e981872a78358. 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/FR10S2049391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fed6579405ed74e9c2f413a4a58170def077a29161135488783953f06804799. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/DGA0P2306367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69360d162f41485b57d17df4d1793f894c0b4a4b300bbd7a8900072ff1dedf4. 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/DGA0P2306368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51b571bcc5fb33dd93744d1a8c9240c94caf5654cdac2a98560a530f76b2f79. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DGA082377538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5ad578cfc566c4f3b39beef79dc98b9f61a33c043ce4448a2b496de17e0df8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:55:32Z), 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/DGA0P2306369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8763ed8aa096124cc09b5f8af427e34b4af785b6a5ff2f28f151c6fdc9b9df28. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DGA0L2302419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df70951d817bda1b47802fe2ba1cd15a242fe60e41c3bf620f72a90ff66572f. Chain 2 (Bitcoin): anchored in block 958572 (2026-07-18T15:47:37Z), 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/DGA0P2306372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1e51e950d31d5f942f2489fcd989c3a717e23374105874aa7a9a37cba70f00. 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/DGA0P2306373.
Do It In Amsterdam (750Th City Anniversary Edit)
Do It In Amsterdam - 750Th City Anniversary Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da478afd491a72bf0ee8357c2b1bc7967363620732f5f0f5c80fd0bdbae4a1d. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:00:43Z), 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/DGA0L2461212.