thumb|An EBow|220x220px thumb|Using an EBow with a Telecaster The EBow is an electronic device used for playing string instruments, most often the electric guitar. It was invented by the American gui
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 0xcfcbaba4a26511bcb179bc991249b09b1d02b9d5d92e41c3918f742085839ad2. 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/af0d4929-6336-48c1-8871-fcbadd608f78.json and https://artists.proofprofile.net/proofs/artist/af0d4929-6336-48c1-8871-fcbadd608f78.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 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 0xdd1b9172726c163b8b92974d6cb8c44fcb5103b8e7fdbb4fede5e16ac2e9175c. 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/ATRA71706102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0cde58624d84745bd3292435b68993aad920a5155a9ca53225a5751d7e030b9. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/ATRA71706701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240d79492c288d3bca5e5408a1dd93205ad2c20c1e0a5a8dd8e48be3a94f87e1. 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/ATRA71706702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a89225af0aece629182256375287da04f4d4375ac069944571a42f0f2422a05. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/ATRA71706703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93550dc973d5c0b6cae790538f43ccd1e7436d2e6dd5cf17098fa5d54bf83180. 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/ATRA71706704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920e97a2e988a8d7a6ce3908d59b64f06660770ae0ba2c0aee10f54994766910. 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/ATRA71706708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774da1bb85ea9adf8625df19ffddcd285039183988f25f9790899ba2e0193a51. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ATRA71706710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8e01703223525c21add1631dde07f5adec291a3b8dabf077be9a6a6d65f4ff. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATRA71706712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b09efc3ab9d43737da11482333d4925af64fd5b6e4f486cfecd9ba96e59cbe. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ATRA71908502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabad3d8d17144414e99ff32e7e6b26c166c8bfe32d596435ace0f6a5cdac0e1. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ATRA71908503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1901d0a4634a43f5e24e51508d0b0dea057013ccf3d3eaf334e95b3a930db921. 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/ATRA71908512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea31940d15ad48c837e987f482856f85d66d50a66ee08f3441053e99bdee90ae. 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/ATRA71808401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bce2aa9ad2da7921d19f83a3ac7a78626e7572aa901a3c817c8d81b6798a4c. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/DELJ81938737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725e411aaae8950a343bd5a60a48673174c8157f576dc51f831e4c9649fcf9a0. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/DELJ81938740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c91c6c659df776437d50ae09a05a84159c225c3f671588ab4b37ae736e65173. 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/DECE72000382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3571a09512539ddcd11f565d89f681ce7b18c79437ee4d15cf3f66579dc2b6. 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/DECE72000574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973d941eac52f278b32f8c6f13c9ab914524dc351a6160e127e9b25dbb0185b3. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DEUM72118349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bf2911e6eaed94458724b58156f13a0bb30e2a2324d53a4bc4f57c29c70c19. 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/DEUM72118350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d50131bffacddbd627808bbee26a514966cb22fbca39190027d6eb76b0fc8a3. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/DEUM72118346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32e79646ea58e8a50fd859bddc1e8be583a05b0cb0f45b336302dea5b29ee53. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/DEUM72118347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef526d4e24e8b114651fbfde28e481370129f374129b47d6e66e6c4a4d0054e7. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/DEUM72118352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed2402a563969bb145bcac9205163562c01af902537be6de8eae64d4b2c3300. 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/DEUM72118348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284dc944434b8e267d8c331b52d9ad60ba88d6d17153b5635026bbfeb40048e4. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/DEUM72118353.
Mein Stern - Reeperbahn Festival Collide
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c07a9c1068b4efe18832ee5f8c1c1180ef74691721b28b68cdb41fc0b6ff7b. 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/DEPI82222580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee75644630d1c28aa814ae0db41af11a990e7323b2704fed6f93d8eb2ba7d2ee. 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/DEZC62436855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9608b6d3d4e720ef6a8084ad342e47e22684210da19227567ba92ff4beb60748. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEZC62442854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65f4aaf1fd815fde8f5b785dee72e3c892162a2234ecaca46a3f28a534eda0a. 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/DEZC62576205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55aeac7d27f60929cb7755ebfd3a7fb3075c7207d1ce8b3d995928bd14bea608. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEZC62576206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d32de16af78f7492ea22fc6743580ea34dffb64a62e21dbca4c6678997bd94. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEZC62576207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded3d9e1d108268ac71bbf1e868ef4477e97ea2f47e3139b17c885f409b8c8a0. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DEZC62576208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d12e1f69e66d95aa0fb483edae4edd04c21948b61cd2ae759e942774a2d95c. 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/DEZC62576210.