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 0x570e6ee23092406b76e3cae1505583616faa27c009a4278d7258b54d87b803fa. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55b0b1bc-dbfd-40b6-8b30-9a4917a34b5a.json and https://artists.proofprofile.net/proofs/artist/55b0b1bc-dbfd-40b6-8b30-9a4917a34b5a.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 0x8d3af1130c908ceb22b42bc2e6afe4d57292bc8e57cd46369b74212435f8d88f. 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/DELL32100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292686afb02c9294805d8622500a7d128015b8ec3cb04ca2b713d34e976771fb. 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/DELL32100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7204b28273ea7aaf127c05747ab4a6690ba653a7e259a05b10802fc5daf4b2a. 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/DELL32200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e869f476a8b21ad30bd9e441c8d6befbb2a1a7909f5e352e5a6f54a76f98b3. 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/DELL32200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564855dfeb892adb94a1d2332913f7d6b4711461dfcd649a44f1537d8a0606e6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DELL32300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2185f1849f37a257026a0cfe24ff1378012e70fe6d7e37aca606d7708c8029. 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/DELL32400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4909bf4da964e6c62426448cae0d109e714474a56382a087160c1800f8a47c. 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/DELL32400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4d272252037210d65122a12f3adcc6dfc6fa52b6fd71921fe4877a137606b7. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DELL32400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2185f1849f37a257026a0cfe24ff1378012e70fe6d7e37aca606d7708c8029. 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/DELL32400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4909bf4da964e6c62426448cae0d109e714474a56382a087160c1800f8a47c. 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/DELL32400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bc2fce0d3c70833908d12df91062755b6b76b4f2f1d42082d430dbdd5a22f8. 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/DELL32400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88b62b4b5ce7d6118acd3ef8033021277ec1a9cdd29adaf23220e4fa3862f2e. 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/DELL32400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675b79831e47d7c2acbacc2247c3f3a24ff19e6f131ead1a4e80f7b1e2ba2eb6. 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/DELL32400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e3bedf3c5e145a0830cba271fc2a8fd984faf693e825b9cb73f2a29c8f3a37. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/DELL32400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6364a4369f91c5b10941027fdf21a5eb4e303b82db1aca5e3f33ddda7d6af5. 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/DELL32400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aadae917d051c6936f9d8d5f5ae8efd758d57f71770ef9375b4ff7393e4bfb9. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/DELL32400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0fc81c15b7c74134199903389329e74bcfdb50d58175cba162eb7f19f8dd82. 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/DELL32400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d932e849675cab0842bd100a2305d44983aa79a653a9743d2991446364981a. 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/SE5BU2467706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa523e57c2881147df4378d8ed7140cd4046d7dfc7e991d1a97d6643854f86aee. 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/DEGQ12200103.
1/2 Cappuccino - Spezial - Chorversion (live)
1/2 Cappuccino [Spezial - Chorversion (live)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189f47354c2be47ed0e129221e0857b0d9ca942bd4ebb4833891b2e6d3f7deb2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEVU52486616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652b623acd5122dcdcb1ddffbd80e00dafceb7716c12c94d226a02585a01955b. 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/DEZC62433825.