HaDorbanim (, lit. The Porcupines) is an Israeli disco, pop, funk and rock band, formed in 1999. The band sings mostly in Hebrew. The band announced its breakup in September 2009 soon after the relea
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 0x75a6b03dbf4e409c1dfc667d678875688baeb8eead06f7dcbef5c931273b9a70. 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/01e3f37e-8e5a-4ef5-a9fd-57e6ff2f0448.json and https://artists.proofprofile.net/proofs/artist/01e3f37e-8e5a-4ef5-a9fd-57e6ff2f0448.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 0x4071745686dc269e5e9bca06ecae4a665827f850f47efc0de9da04d3134ccd33. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/IL1020902755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeeeb25f41954d4fb103a1c5c9d11cbf3ce9fc73f880caa6fa05fdb9cdfc03a0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/IL1020902994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd096b1e2f27124e0051e0eab196f6757c9ffc482a874d75af58564ac3ceb546. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/IL1020902995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fca04318557e41410e14a7d6d756eca00eb75763b37f3a4db0a307fb7cbbfaf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/IL1020902996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb801eac96d740a14f0144ee5e4fa29436996adaa7b66ebc8abd732487d505a4a. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/IL1020902997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e47d28b4a5e74c796c71c95f43060651cd86d1e89bc63be6f51878da8f475c. 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/IL1020902998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10068bebada80e0be67be134ca034146ebc9b5d859505f27aac38538bf4514f1. 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/IL1020902999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4b7c81714a4aae5ec5632f0d1f9cdf768d0020a9132691c1d3d84c3d99a8d3. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/IL1020903000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a0f9a6a8c813ac2954bfdfddce4900a8323d01b81e4a5e57d85bbf11648ea5. 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/IL1020903001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d380ff9810bfa61ac276907b4949ab1decd5b30e4cbe83cf35d666832ab9c7. 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/IL1020903002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48de1fad691ceed73e1d3714386783613f5340e5c62dd675d01d9c389da3de6e. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/IL1020903003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e590b898fc7220a00778e9257b595671d9b2e335f2fd5734a335e3da8c0e4f0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/IL1020902921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7260a8aa8ce6a9053ee331b7d599f0bacb51a362ba8ffc0f3cbfd375aff417f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/IL1020903004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64fa866d4f8b7bcf2c0385fdd7d467b67e69e121cb78f817f0c79c87c9d2504. 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/IL1020903005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429f34874d9524ac344ead1cb77cacd6303d72051adf2fbf85c29bfa01c755a0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IL1020601574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957dea90559e03d1a5aa5e179dbf453cc415889a07d63cde737103341a03a19b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/IL1020601575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5467e171239945a07b65d52ea105969e3ee1e040ebd6e34bc4e0074830a294. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/IL1020601576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5d98d298dfff529e8a8f915b28044c4301d6eb12e9350f63aec2c7311394cf. 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/IL1020601577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e4666aa294c786c6e3ac0885ecad068e73c2884fc66d121b73b2e9d2fd387e. 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/IL1020601578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdb3614fae4f811b3e4fad78a135c48029f5f17dde4377d557cd51a6518825a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IL1020601580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167f3097480184e54b40e087cae4854ba81faec228f3908ebfa1e884ab74ad72. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/IL1020601581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d597284f87c62e8bc30eae1fe6a64c9013f03b752c3341e348406891f71dbe. 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/IL1020601582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f5b794cb489f663d44180b42e38328446d234215c5a148b60e41931f239076. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/IL1020601583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5e8cee3412ae6c1f316fe145b37401419697c41b4f8e0ad6be4985cac7b2b4. 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/IL1020601584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7248725274f859f29e4dcce48d26caf8f3a0bcf41cd5dbd0b8da8cd477eca3e8. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/IL1020601585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38da1f293bd274658b40288242d4a167a8c1e1ccadc8074d1a435ed23d55f8cf. 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/IL1020601586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8d705f94451662fc165b8ffc2a6eb72893ba2c3e7a34521673138536c4ce06. 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/IL1020301272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfe814601a70699049f874824ed2a604dd6cab42d23078fbe777b5937973211. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/IL1020301263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5832e976b233b099ac47a40d464907fd9d1219d7dd5721ae17727a82a96cd0e. 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/IL1020301271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a59d415513898bee6aa24800cbc6dc431cc74b55b239ffff9a7b15fd9089860. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IL1020301269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf5943b5d57819260e64f242e6b9b19fa6366f14a8b67d6e3c70eb23cde6e07. 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/IL1020301267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ff67c4e64c8fc591de162d3a521ff8c235c2025faee891b81d68d8c7fde1e9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/IL1020301273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dabd95bc08f6d67906e65af2c784f9e89b6e0c6c67ad9c3b1e05768386d38e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IL1020301268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a41976759acab406c924360739ca9fb499574accf5f193e21d1705b8ce5b17. 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/IL1020301266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde96ddef6a7b1ba382c070e633ca3b8d732f46824fd968a3230531edfbb74680. 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/IL1020301265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7968cac53fb6ab6a63e085fabf590cd865ef57379da3299d27e05144d15afd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/IL1020301270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb974b97ffeea3d4ac5ec914bc7713d412f298ed8efe90bdb0405fea672b9ed94. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/IL1020301264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5175882b43b5425e622f75f11e915fda4021095c899567dedb9f2739077e1120. 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/IL1042305321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efd735d338316c7b3f013ce138026b15722dcdcd8e9f4250ab73787adf02043. 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/IL1042304531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb477d4f739747123d6d146386eb52741aa0e04e6386c57055ef0b99f424e9f9b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IL1002000179.